octave: liboctave/numeric/oct-rand.cc annotate

annotate liboctave/numeric/oct-rand.cc @ 26376:00f796120a6d stable

maint: Update copyright dates in all source files.

author	John W. Eaton <jwe@octave.org>
date	Wed, 02 Jan 2019 16:32:43 -0500
parents	49e0447413ad
children	fff643eb3514 0dcb3e515370

rev	line source
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	1 /*
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	2
26376 00f796120a6d maint: Update copyright dates in all source files. John W. Eaton <jwe@octave.org> parents: 25433 diff changeset	3 Copyright (C) 2003-2019 John W. Eaton
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	4
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	6
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23564 diff changeset	7 Octave is free software: you can redistribute it and/or modify it
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	8 under the terms of the GNU General Public License as published by
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23564 diff changeset	9 the Free Software Foundation, either version 3 of the License, or
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	10 (at your option) any later version.
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	11
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	12 Octave is distributed in the hope that it will be useful, but
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	13 WITHOUT ANY WARRANTY; without even the implied warranty of
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22402 diff changeset	15 GNU General Public License for more details.
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	16
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6435 diff changeset	18 along with Octave; see the file COPYING. If not, see
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23564 diff changeset	19 <https://www.gnu.org/licenses/>.
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	20
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	21 */
b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	22
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21723 diff changeset	23 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21202 diff changeset	24 # include "config.h"
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	25 #endif
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	26
23475 d691ed308237 maint: Clean up #includes in liboctave/numeric directory. Rik <rik@octave.org> parents: 23457 diff changeset	27 #include <cassert>
21912 d92dcbcd7691 prefer C++ wrappers for C standard headers in C++ code John W. Eaton <jwe@octave.org> parents: 21782 diff changeset	28 #include <cstdint>
d92dcbcd7691 prefer C++ wrappers for C standard headers in C++ code John W. Eaton <jwe@octave.org> parents: 21782 diff changeset	29
23475 d691ed308237 maint: Clean up #includes in liboctave/numeric directory. Rik <rik@octave.org> parents: 23457 diff changeset	30 #include <limits>
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	31
13983 7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	32 #include "lo-error.h"
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	33 #include "lo-ieee.h"
109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	34 #include "lo-mappers.h"
22322 93b3cdd36854 move most f77 function decls to separate header files John W. Eaton <jwe@octave.org> parents: 22197 diff changeset	35 #include "lo-ranlib-proto.h"
13983 7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	36 #include "mach-info.h"
7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	37 #include "oct-locbuf.h"
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	38 #include "oct-rand.h"
4415 ed8c4aaa8648 [project @ 2003-05-16 21:20:33 by jwe] jwe parents: 4308 diff changeset	39 #include "oct-time.h"
23475 d691ed308237 maint: Clean up #includes in liboctave/numeric directory. Rik <rik@octave.org> parents: 23457 diff changeset	40 #include "quit.h"
13983 7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	41 #include "randgamma.h"
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	42 #include "randmtzig.h"
109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	43 #include "randpoisson.h"
13983 7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	44 #include "singleton-cleanup.h"
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	45
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	46 namespace octave
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	47 {
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	48 rand *rand::instance = nullptr;
6435 71888a0ab040 [project @ 2007-03-23 14:17:02 by dbateman] dbateman parents: 6326 diff changeset	49
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	50 rand::rand (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	51 : current_distribution (uniform_dist), use_old_generators (false),
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	52 rand_states ()
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	53 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	54 initialize_ranlib_generators ();
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	55
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	56 initialize_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	57 }
24866 441b27c0fd5e use C++11 features to eliminate some macros in oct-rand.cc John W. Eaton <jwe@octave.org> parents: 24856 diff changeset	58
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	59 bool rand::instance_ok (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	60 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	61 bool retval = true;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	62
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	63 if (! instance)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	64 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	65 instance = new rand ();
10709 92a85ed5b86e Don't special case color_property type when emitting factory default (bug #30118) David Bateman <dbateman@free.fr> parents: 10350 diff changeset	66
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	67 if (instance)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	68 singleton_cleanup_list::add (cleanup_instance);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	69 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	70
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	71 if (! instance)
7536 4dda6fbc8ba6 oct-rand.cc: fix typo John W. Eaton <jwe@octave.org> parents: 7535 diff changeset	72 (*current_liboctave_error_handler)
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	73 ("unable to create rand object!");
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	74
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	75 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	76 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	77
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	78 double rand::do_seed (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	79 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	80 union d2i { double d; int32_t i[2]; };
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	81 union d2i u;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	82
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	83 mach_info::float_format ff = mach_info::native_float_format ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	84
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	85 switch (ff)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	86 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	87 case mach_info::flt_fmt_ieee_big_endian:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	88 F77_FUNC (getsd, GETSD) (u.i[1], u.i[0]);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	89 break;
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	90
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	91 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	92 F77_FUNC (getsd, GETSD) (u.i[0], u.i[1]);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	93 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	94 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	95
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	96 return u.d;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	97 }
7536 4dda6fbc8ba6 oct-rand.cc: fix typo John W. Eaton <jwe@octave.org> parents: 7535 diff changeset	98
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	99 static int32_t
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	100 force_to_fit_range (int32_t i, int32_t lo, int32_t hi)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	101 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	102 assert (hi > lo && lo >= 0 && hi > lo);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	103
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	104 i = (i > 0 ? i : -i);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	105
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	106 if (i < lo)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	107 i = lo;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	108 else if (i > hi)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	109 i = i % hi;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	110
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	111 return i;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	112 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	113
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	114 void rand::do_seed (double s)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	115 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	116 use_old_generators = true;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	117
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	118 int i0, i1;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	119 union d2i { double d; int32_t i[2]; };
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	120 union d2i u;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	121 u.d = s;
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	122
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	123 mach_info::float_format ff = mach_info::native_float_format ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	124
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	125 switch (ff)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	126 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	127 case mach_info::flt_fmt_ieee_big_endian:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	128 i1 = force_to_fit_range (u.i[0], 1, 2147483563);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	129 i0 = force_to_fit_range (u.i[1], 1, 2147483399);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	130 break;
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	131
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	132 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	133 i0 = force_to_fit_range (u.i[0], 1, 2147483563);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	134 i1 = force_to_fit_range (u.i[1], 1, 2147483399);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	135 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	136 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	137
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	138 F77_FUNC (setsd, SETSD) (i0, i1);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	139 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	140
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	141 void rand::do_reset (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	142 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	143 use_old_generators = true;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	144 initialize_ranlib_generators ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	145 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	146
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	147 uint32NDArray rand::do_state (const std::string& d)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	148 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	149 return rand_states[d.empty () ? current_distribution : get_dist_id (d)];
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	150 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	151
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	152 void rand::do_state (const uint32NDArray& s, const std::string& d)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	153 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	154 use_old_generators = false;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	155
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	156 int old_dist = current_distribution;
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	157
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	158 int new_dist = (d.empty () ? current_distribution : get_dist_id (d));
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	159
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	160 uint32NDArray saved_state;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	161
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	162 if (old_dist != new_dist)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	163 saved_state = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	164
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	165 set_internal_state (s);
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	166
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	167 rand_states[new_dist] = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	168
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	169 if (old_dist != new_dist)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	170 rand_states[old_dist] = saved_state;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	171 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	172
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	173 void rand::do_reset (const std::string& d)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	174 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	175 use_old_generators = false;
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	176
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	177 int old_dist = current_distribution;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	178
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	179 int new_dist = (d.empty () ? current_distribution : get_dist_id (d));
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	180
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	181 uint32NDArray saved_state;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	182
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	183 if (old_dist != new_dist)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	184 saved_state = get_internal_state ();
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	185
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	186 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	187 rand_states[new_dist] = get_internal_state ();
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	188
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	189 if (old_dist != new_dist)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	190 rand_states[old_dist] = saved_state;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	191 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	192
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	193 std::string rand::do_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	194 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	195 std::string retval;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	196
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	197 switch (current_distribution)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	198 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	199 case uniform_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	200 retval = "uniform";
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	201 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	202
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	203 case normal_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	204 retval = "normal";
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	205 break;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	206
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	207 case expon_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	208 retval = "exponential";
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	209 break;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	210
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	211 case poisson_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	212 retval = "poisson";
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	213 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	214
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	215 case gamma_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	216 retval = "gamma";
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	217 break;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	218
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	219 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	220 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	221 ("rand: invalid distribution ID = %d", current_distribution);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	222 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	223 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	224
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	225 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	226 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	227
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	228 void rand::do_distribution (const std::string& d)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	229 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	230 int id = get_dist_id (d);
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	231
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	232 switch (id)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	233 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	234 case uniform_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	235 rand::uniform_distribution ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	236 break;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	237
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	238 case normal_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	239 rand::normal_distribution ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	240 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	241
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	242 case expon_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	243 rand::exponential_distribution ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	244 break;
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	245
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	246 case poisson_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	247 rand::poisson_distribution ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	248 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	249
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	250 case gamma_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	251 rand::gamma_distribution ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	252 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	253
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	254 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	255 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	256 ("rand: invalid distribution ID = %d", id);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	257 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	258 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	259 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	260
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	261 void rand::do_uniform_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	262 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	263 switch_to_generator (uniform_dist);
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	264
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	265 F77_FUNC (setcgn, SETCGN) (uniform_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	266 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	267
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	268 void rand::do_normal_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	269 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	270 switch_to_generator (normal_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	271
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	272 F77_FUNC (setcgn, SETCGN) (normal_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	273 }
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	274
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	275 void rand::do_exponential_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	276 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	277 switch_to_generator (expon_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	278
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	279 F77_FUNC (setcgn, SETCGN) (expon_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	280 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	281
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	282 void rand::do_poisson_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	283 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	284 switch_to_generator (poisson_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	285
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	286 F77_FUNC (setcgn, SETCGN) (poisson_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	287 }
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	288
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	289 void rand::do_gamma_distribution (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	290 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	291 switch_to_generator (gamma_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	292
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	293 F77_FUNC (setcgn, SETCGN) (gamma_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	294 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	295
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	296 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	297 double rand::uniform<double> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	298 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	299 double retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	300
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	301 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	302 F77_FUNC (dgenunf, DGENUNF) (0.0, 1.0, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	303 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	304 retval = octave::rand_uniform<double> ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	305
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	306 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	307 }
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	308
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	309 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	310 double rand::normal<double> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	311 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	312 double retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	313
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	314 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	315 F77_FUNC (dgennor, DGENNOR) (0.0, 1.0, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	316 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	317 retval = octave::rand_normal<double> ();
4308 b738d1a02adb [project @ 2003-01-24 19:37:12 by jwe] jwe parents: diff changeset	318
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	319 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	320 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	321
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	322 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	323 double rand::exponential<double> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	324 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	325 double retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	326
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	327 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	328 F77_FUNC (dgenexp, DGENEXP) (1.0, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	329 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	330 retval = octave::rand_exponential<double> ();
4543 79df15d4470c [project @ 2003-10-18 03:53:52 by jwe] jwe parents: 4415 diff changeset	331
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	332 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	333 }
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	334
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	335 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	336 double rand::poisson<double> (double a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	337 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	338 double retval;
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	339
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	340 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	341 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	342 if (a < 0.0 \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	343 retval = numeric_limits<double>::NaN ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	344 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	345 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	346 // workaround bug in ignpoi, by calling with different Mu
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	347 F77_FUNC (dignpoi, DIGNPOI) (a + 1, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	348 F77_FUNC (dignpoi, DIGNPOI) (a, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	349 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	350 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	351 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	352 retval = octave::rand_poisson<double> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	353
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	354 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	355 }
5730 109fdf7b3dcb [project @ 2006-04-03 19:18:26 by jwe] jwe parents: 5307 diff changeset	356
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	357 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	358 double rand::gamma<double> (double a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	359 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	360 double retval;
4543 79df15d4470c [project @ 2003-10-18 03:53:52 by jwe] jwe parents: 4415 diff changeset	361
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	362 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	363 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	364 if (a <= 0.0 \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	365 retval = numeric_limits<double>::NaN ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	366 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	367 F77_FUNC (dgengam, DGENGAM) (1.0, a, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	368 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	369 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	370 retval = octave::rand_gamma<double> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	371
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	372 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	373 }
7533 ff52243af934 save state separately for each MT random number generator John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	374
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	375 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	376 float rand::uniform<float> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	377 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	378 float retval;
4543 79df15d4470c [project @ 2003-10-18 03:53:52 by jwe] jwe parents: 4415 diff changeset	379
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	380 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	381 F77_FUNC (fgenunf, FGENUNF) (0.0f, 1.0f, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	382 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	383 retval = octave::rand_uniform<float> ();
4543 79df15d4470c [project @ 2003-10-18 03:53:52 by jwe] jwe parents: 4415 diff changeset	384
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	385 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	386 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	387
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	388 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	389 float rand::normal<float> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	390 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	391 float retval;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	392
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	393 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	394 F77_FUNC (fgennor, FGENNOR) (0.0f, 1.0f, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	395 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	396 retval = octave::rand_normal<float> ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	397
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	398 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	399 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	400
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	401 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	402 float rand::exponential<float> (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	403 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	404 float retval;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	405
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	406 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	407 F77_FUNC (fgenexp, FGENEXP) (1.0f, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	408 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	409 retval = octave::rand_exponential<float> ();
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	410
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	411 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	412 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	413
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	414 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	415 float rand::poisson<float> (float a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	416 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	417 float retval;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	418
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	419 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	420 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	421 if (a < 0.0f \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	422 retval = numeric_limits<float>::NaN ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	423 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	424 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	425 // workaround bug in ignpoi, by calling with different Mu
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	426 F77_FUNC (fignpoi, FIGNPOI) (a + 1, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	427 F77_FUNC (fignpoi, FIGNPOI) (a, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	428 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	429 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	430 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	431 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	432 // Keep poisson distribution in double precision for accuracy
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	433 retval = octave::rand_poisson<double> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	434 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	435
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	436 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	437 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	438
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	439 template <>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	440 float rand::gamma<float> (float a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	441 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	442 float retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	443
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	444 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	445 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	446 if (a <= 0.0f \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	447 retval = numeric_limits<float>::NaN ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	448 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	449 F77_FUNC (fgengam, FGENGAM) (1.0f, a, retval);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	450 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	451 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	452 retval = octave::rand_gamma<float> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	453
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	454 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	455 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	456
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	457 template <typename T>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	458 T rand::do_scalar (T a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	459 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	460 T retval = 0;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	461
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	462 switch (current_distribution)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	463 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	464 case uniform_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	465 retval = uniform<T> ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	466 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	467
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	468 case normal_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	469 retval = normal<T> ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	470 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	471
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	472 case expon_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	473 retval = exponential<T> ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	474 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	475
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	476 case poisson_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	477 retval = poisson<T> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	478 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	479
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	480 case gamma_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	481 retval = gamma<T> (a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	482 break;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	483
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	484 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	485 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	486 ("rand: invalid distribution ID = %d", current_distribution);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	487 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	488 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	489
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	490 if (! use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	491 save_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	492
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	493 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	494 }
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	495
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	496 template double rand::do_scalar<double> (double);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	497 template float rand::do_scalar<float> (float);
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	498
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	499 template <typename T>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	500 Array<T>
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	501 rand::do_vector (octave_idx_type n, T a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	502 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	503 Array<T> retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	504
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	505 if (n > 0)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	506 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	507 retval.clear (n, 1);
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	508
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	509 fill (retval.numel (), retval.fortran_vec (), a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	510 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	511 else if (n < 0)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	512 (*current_liboctave_error_handler) ("rand: invalid negative argument");
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	513
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	514 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	515 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	516
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	517 template Array<double> rand::do_vector<double> (octave_idx_type, double);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	518 template Array<float> rand::do_vector<float> (octave_idx_type, float);
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	519
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	520 NDArray rand::do_nd_array (const dim_vector& dims, double a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	521 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	522 NDArray retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	523
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	524 if (! dims.all_zero ())
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	525 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	526 retval.clear (dims);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	527
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	528 fill (retval.numel (), retval.fortran_vec (), a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	529 }
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	530
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	531 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	532 }
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	533
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	534 FloatNDArray rand::do_float_nd_array (const dim_vector& dims, float a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	535 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	536 FloatNDArray retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	537
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	538 if (! dims.all_zero ())
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	539 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	540 retval.clear (dims);
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	541
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	542 fill (retval.numel (), retval.fortran_vec (), a);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	543 }
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	544
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	545 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	546 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	547
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	548 // Make the random number generator give us a different sequence every
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	549 // time we start octave unless we specifically set the seed. The
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	550 // technique used below will cycle monthly, but it does seem to
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	551 // work ok to give fairly different seeds each time Octave starts.
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	552
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	553 void rand::initialize_ranlib_generators (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	554 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	555 sys::localtime tm;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	556 int stored_distribution = current_distribution;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	557 F77_FUNC (setcgn, SETCGN) (uniform_dist);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	558
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	559 int hour = tm.hour () + 1;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	560 int minute = tm.min () + 1;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	561 int second = tm.sec () + 1;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	562
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	563 int32_t s0 = tm.mday () * hour * minute * second;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	564 int32_t s1 = hour * minute * second;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	565
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	566 s0 = force_to_fit_range (s0, 1, 2147483563);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	567 s1 = force_to_fit_range (s1, 1, 2147483399);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	568
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	569 F77_FUNC (setall, SETALL) (s0, s1);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	570 F77_FUNC (setcgn, SETCGN) (stored_distribution);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	571 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	572
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	573 void rand::initialize_mersenne_twister (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	574 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	575 uint32NDArray s;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	576
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	577 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	578 s = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	579 rand_states[uniform_dist] = s;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	580
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	581 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	582 s = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	583 rand_states[normal_dist] = s;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	584
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	585 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	586 s = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	587 rand_states[expon_dist] = s;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	588
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	589 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	590 s = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	591 rand_states[poisson_dist] = s;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	592
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	593 init_mersenne_twister ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	594 s = get_internal_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	595 rand_states[gamma_dist] = s;
14655 43db83eff9db Implement single precision rand, randn, rande, randg and randp generators (bug #34351, #36293) David Bateman <dbateman@free.fr> parents: 14138 diff changeset	596
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	597 // All of the initializations above have messed with the internal state.
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	598 // Restore the state of the currently selected distribution.
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	599 set_internal_state (rand_states[current_distribution]);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	600 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	601
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	602 uint32NDArray rand::get_internal_state (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	603 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	604 uint32NDArray s (dim_vector (MT_N + 1, 1));
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	605
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	606 get_mersenne_twister_state (reinterpret_cast<uint32_t *> (s.fortran_vec ()));
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	607
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	608 return s;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	609 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	610
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	611 void rand::save_state (void)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	612 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	613 rand_states[current_distribution] = get_internal_state ();;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	614 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	615
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	616 int rand::get_dist_id (const std::string& d)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	617 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	618 int retval = unknown_dist;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	619
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	620 if (d == "uniform" \|\| d == "rand")
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	621 retval = uniform_dist;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	622 else if (d == "normal" \|\| d == "randn")
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	623 retval = normal_dist;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	624 else if (d == "exponential" \|\| d == "rande")
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	625 retval = expon_dist;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	626 else if (d == "poisson" \|\| d == "randp")
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	627 retval = poisson_dist;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	628 else if (d == "gamma" \|\| d == "randg")
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	629 retval = gamma_dist;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	630 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	631 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	632 ("rand: invalid distribution '%s'", d.c_str ());
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	633
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	634 return retval;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	635 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	636
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	637 void rand::set_internal_state (const uint32NDArray& s)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	638 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	639 octave_idx_type len = s.numel ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	640
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	641 const uint32_t sdata = reinterpret_cast <const uint32_t > (s.data ());
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	642
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	643 if (len == MT_N + 1 && sdata[MT_N] <= MT_N && sdata[MT_N] > 0)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	644 set_mersenne_twister_state (sdata);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	645 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	646 init_mersenne_twister (sdata, len);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	647 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	648
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	649 void rand::switch_to_generator (int dist)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	650 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	651 if (dist != current_distribution)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	652 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	653 current_distribution = dist;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	654
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	655 set_internal_state (rand_states[dist]);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	656 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	657 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	658
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	659 void rand::fill (octave_idx_type len, double *v, double a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	660 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	661 if (len < 1)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	662 return;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	663
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	664 switch (current_distribution)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	665 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	666 case uniform_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	667 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	668 std::generate_n (v, len, [](void) { double x; F77_FUNC (dgenunf, DGENUNF) (0.0, 1.0, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	669 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	670 rand_uniform<double> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	671 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	672
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	673 case normal_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	674 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	675 std::generate_n (v, len, [](void) { double x; F77_FUNC (dgennor, DGENNOR) (0.0, 1.0, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	676 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	677 rand_normal<double> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	678 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	679
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	680 case expon_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	681 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	682 std::generate_n (v, len, [](void) { double x; F77_FUNC (dgenexp, DGENEXP) (1.0, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	683 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	684 rand_exponential<double> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	685 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	686
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	687 case poisson_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	688 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	689 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	690 if (a < 0.0 \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	691 std::fill_n (v, len, numeric_limits<double>::NaN ());
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	692 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	693 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	694 // workaround bug in ignpoi, by calling with different Mu
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	695 double tmp;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	696 F77_FUNC (dignpoi, DIGNPOI) (a + 1, tmp);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	697 std::generate_n (v, len, [a](void) { double x; F77_FUNC (dignpoi, DIGNPOI) (a, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	698 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	699 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	700 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	701 rand_poisson<double> (a, len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	702 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	703
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	704 case gamma_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	705 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	706 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	707 if (a <= 0.0 \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	708 std::fill_n (v, len, numeric_limits<double>::NaN ());
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	709 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	710 std::generate_n (v, len, [a](void) { double x; F77_FUNC (dgengam, DGENGAM) (1.0, a, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	711 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	712 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	713 rand_gamma<double> (a, len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	714 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	715
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	716 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	717 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	718 ("rand: invalid distribution ID = %d", current_distribution);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	719 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	720 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	721
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	722 save_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	723
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	724 return;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	725 }
8124 d227d096d49e oct-rand.cc (initialize_mersenne_twister): use separate initializations for each generator Brian Gough parents: 7537 diff changeset	726
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	727 void rand::fill (octave_idx_type len, float *v, float a)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	728 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	729 if (len < 1)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	730 return;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	731
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	732 switch (current_distribution)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	733 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	734 case uniform_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	735 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	736 std::generate_n (v, len, [](void) { float x; F77_FUNC (fgenunf, FGENUNF) (0.0f, 1.0f, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	737 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	738 octave::rand_uniform<float> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	739 break;
8124 d227d096d49e oct-rand.cc (initialize_mersenne_twister): use separate initializations for each generator Brian Gough parents: 7537 diff changeset	740
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	741 case normal_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	742 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	743 std::generate_n (v, len, [](void) { float x; F77_FUNC (fgennor, FGENNOR) (0.0f, 1.0f, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	744 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	745 octave::rand_normal<float> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	746 break;
8124 d227d096d49e oct-rand.cc (initialize_mersenne_twister): use separate initializations for each generator Brian Gough parents: 7537 diff changeset	747
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	748 case expon_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	749 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	750 std::generate_n (v, len, [](void) { float x; F77_FUNC (fgenexp, FGENEXP) (1.0f, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	751 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	752 octave::rand_exponential<float> (len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	753 break;
24852 53db3b152397 Correctly set rand state at startup (bug #53300). Rik <rik@octave.org> parents: 24534 diff changeset	754
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	755 case poisson_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	756 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	757 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	758 if (a < 0.0f \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	759 std::fill_n (v, len, numeric_limits<float>::NaN ());
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	760 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	761 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	762 // workaround bug in ignpoi, by calling with different Mu
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	763 float tmp;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	764 F77_FUNC (fignpoi, FIGNPOI) (a + 1, tmp);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	765 std::generate_n (v, len, [a](void) { float x; F77_FUNC (fignpoi, FIGNPOI) (a, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	766 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	767 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	768 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	769 octave::rand_poisson<float> (a, len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	770 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	771
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	772 case gamma_dist:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	773 if (use_old_generators)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	774 {
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	775 if (a <= 0.0f \|\| ! math::isfinite (a))
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	776 std::fill_n (v, len, numeric_limits<float>::NaN ());
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	777 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	778 std::generate_n (v, len, [a](void) { float x; F77_FUNC (fgengam, FGENGAM) (1.0f, a, x); return x; });
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	779 }
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	780 else
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	781 octave::rand_gamma<float> (a, len, v);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	782 break;
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	783
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	784 default:
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	785 (*current_liboctave_error_handler)
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	786 ("rand: invalid distribution ID = %d", current_distribution);
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	787 break;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	788 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	789
25433 49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	790 save_state ();
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	791
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	792 return;
49e0447413ad use templates and move rand functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	793 }
7537 a2950622f070 make octave_rand a proper singleton class John W. Eaton <jwe@octave.org> parents: 7536 diff changeset	794 }

Mercurial > octave

annotate liboctave/numeric/oct-rand.cc @ 26376:00f796120a6d stable