octave: libinterp/corefcn/typecast.cc annotate

annotate libinterp/corefcn/typecast.cc @ 17396:0b644adf4f31

speak CHAR_BIT in C++-ese * bitfcns.cc, typecast.cc, data-conv.cc: Instead of CHAR_BIT, use std::numeric_limits<unsigned char>::digits.

author	John W. Eaton <jwe@octave.org>
date	Mon, 09 Sep 2013 17:13:11 -0400
parents	bc924baa2c4e
children	d63878346099

rev	line source
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	1 /*
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	2
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 13845 diff changeset	3 Copyright (C) 2007-2012 David Bateman
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	4 Copyright (C) 2009 VZLU Prague
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	5
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	6 This file is part of Octave.
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	7
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	9 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6948 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6948 diff changeset	11 option) any later version.
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	12
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	16 for more details.
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	17
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	18 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: 6948 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6948 diff changeset	20 <http://www.gnu.org/licenses/>.
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	21
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	22 */
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	23
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	24 #ifdef HAVE_CONFIG_H
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	25 #include <config.h>
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	26 #endif
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	27
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	28 #include <limits>
15289 27bdffcb41c5 typecast.cc: Include <climits> for CHAR_BIT. Júlio Hoffimann <julio.hoffimann@gmail.com>* parents: 15195 diff changeset	29
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	30 #include "mx-base.h"
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	31
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	32 #include "defun.h"
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	33 #include "error.h"
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	34 #include "gripes.h"
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	35 #include "oct-obj.h"
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	36 #include "unwind-prot.h"
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	37
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	38 static dim_vector
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	39 get_vec_dims (const dim_vector& old_dims, octave_idx_type n)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	40 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	41 if (old_dims.length () == 2 && old_dims(0) == 1)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	42 return dim_vector (1, n);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	43 else if (old_dims.length () == 2 && old_dims (0) == 0 && old_dims (1) == 0)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	44 return dim_vector ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	45 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	46 return dim_vector (n, 1);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	47 }
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	48
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	49 template <class ArrayType>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11572 diff changeset	50 static void
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	51 get_data_and_bytesize (const ArrayType& array,
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	52 const void *& data,
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	53 octave_idx_type& byte_size,
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	54 dim_vector& old_dims,
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	55 unwind_protect& frame)
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	56 {
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	57 // The array given may be a temporary, constructed from a scalar or sparse
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	58 // array. This will ensure the data will be deallocated after we exit.
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	59 frame.add_delete (new ArrayType (array));
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	60
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	61 data = reinterpret_cast<const void *> (array.data ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	62 byte_size = array.byte_size ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	63
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	64 old_dims = array.dims ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	65 }
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	66
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	67 template <class ArrayType>
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	68 static ArrayType
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	69 reinterpret_copy (const void *data, octave_idx_type byte_size,
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	70 const dim_vector& old_dims)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	71 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	72 typedef typename ArrayType::element_type T;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	73 octave_idx_type n = byte_size / sizeof (T);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	74
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	75 if (n * static_cast<int> (sizeof (T)) == byte_size)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	76 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	77 ArrayType retval (get_vec_dims (old_dims, n));
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	78 T *dest = retval.fortran_vec ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	79 std::memcpy (dest, data, n * sizeof (T));
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	80
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	81 return retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	82 }
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	83 else
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	84 {
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	85 error ("typecast: incorrect number of input values to make output value");
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	86 return ArrayType ();
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	87 }
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	88 }
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	89
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	90
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	91 DEFUN (typecast, args, ,
8715 954b6f69f51d doc fixes John W. Eaton <jwe@octave.org> parents: 8100 diff changeset	92 "-- texinfo --\n\
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	93 @deftypefn {Built-in Function} {} typecast (@var{x}, @var{class})\n\
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	94 Return a new array @var{y} resulting from interpreting the data of\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	95 @var{x} in memory as data of the numeric class @var{class}. Both the class\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	96 of @var{x} and @var{class} must be one of the built-in numeric classes:\n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	97 \n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	98 @example\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	99 @group\n\
14360 97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	100 \"logical\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	101 \"char\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	102 \"int8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	103 \"int16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	104 \"int32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	105 \"int64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	106 \"uint8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	107 \"uint16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	108 \"uint32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	109 \"uint64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	110 \"double\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	111 \"single\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	112 \"double complex\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	113 \"single complex\"\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	114 @end group\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	115 @end example\n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	116 \n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	117 @noindent\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	118 the last two are reserved for @var{class}; they indicate that a\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	119 complex-valued result is requested. Complex arrays are stored in memory as\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	120 consecutive pairs of real numbers. The sizes of integer types are given by\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	121 their bit counts. Both logical and char are typically one byte wide;\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	122 however, this is not guaranteed by C++. If your system is IEEE conformant,\n\
12642 f96b9b9f141b doc: Periodic grammarcheck and spellcheck of documentation. Rik <octave@nomad.inbox5.com> parents: 11586 diff changeset	123 single and double should be 4 bytes and 8 bytes wide, respectively.\n\
17281 bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15545 diff changeset	124 @qcode{\"logical\"} is not allowed for @var{class}. If the input is a row\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15545 diff changeset	125 vector, the return value is a row vector, otherwise it is a column vector. \n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15545 diff changeset	126 If the bit length of @var{x} is not divisible by that of @var{class}, an\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15545 diff changeset	127 error occurs.\n\
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	128 \n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	129 An example of the use of typecast on a little-endian machine is\n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	130 \n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	131 @example\n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	132 @group\n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	133 @var{x} = uint16 ([1, 65535]);\n\
14360 97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	134 typecast (@var{x}, \"uint8\")\n\
15542 69f45f3ab96a Correct big-endian/little-endian reversal in typecast documentation. Rik <rik@octave.org> parents: 14138 diff changeset	135 @result{} [ 1, 0, 255, 255]\n\
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	136 @end group\n\
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	137 @end example\n\
10807 bdde9c59f77a typecast: Combine two @seealso macro uses to one. Rik <octave@nomad.inbox5.com> parents: 10066 diff changeset	138 @seealso{cast, bitunpack, bitpack, swapbytes}\n\
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	139 @end deftypefn")
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	140 {
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	141 octave_value retval;
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	142
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	143 if (args.length () == 2)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	144 {
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	145 unwind_protect frame;
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	146 const void *data = 0;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	147 octave_idx_type byte_size = 0;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	148 dim_vector old_dims;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	149
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	150 octave_value array = args(0);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	151
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	152 if (array.is_bool_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	153 get_data_and_bytesize (array.bool_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	154 else if (array.is_string ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	155 get_data_and_bytesize (array.char_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	156 else if (array.is_integer_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	157 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	158 if (array.is_int8_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	159 get_data_and_bytesize (array.int8_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	160 else if (array.is_int16_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	161 get_data_and_bytesize (array.int16_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	162 else if (array.is_int32_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	163 get_data_and_bytesize (array.int32_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	164 else if (array.is_int64_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	165 get_data_and_bytesize (array.int64_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	166 else if (array.is_uint8_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	167 get_data_and_bytesize (array.uint8_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	168 else if (array.is_uint16_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	169 get_data_and_bytesize (array.uint16_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	170 else if (array.is_uint32_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	171 get_data_and_bytesize (array.uint32_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	172 else if (array.is_uint64_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	173 get_data_and_bytesize (array.uint64_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	174 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	175 assert (0);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	176 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	177 else if (array.is_complex_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	178 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	179 if (array.is_single_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	180 get_data_and_bytesize (array.float_complex_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	181 else
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	182 get_data_and_bytesize (array.complex_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	183 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	184 else if (array.is_real_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	185 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	186 if (array.is_single_type ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	187 get_data_and_bytesize (array.float_array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	188 else
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	189 get_data_and_bytesize (array.array_value (), data, byte_size, old_dims, frame);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	190 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	191 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	192 error ("typecast: invalid input class: %s", array.class_name ().c_str ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	193
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	194 std::string numclass = args(1).string_value ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	195
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	196 if (error_state \|\| numclass.size () == 0)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	197 ;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	198 else if (numclass == "char")
9689 34d6f005db4b eliminate is_string argument from octave_value character array constructors John W. Eaton <jwe@octave.org> parents: 9671 diff changeset	199 retval = octave_value (reinterpret_copy<charNDArray> (data, byte_size, old_dims), array.is_dq_string () ? '"' : '\'');
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	200 else if (numclass[0] == 'i')
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	201 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	202 if (numclass == "int8")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	203 retval = reinterpret_copy<int8NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	204 else if (numclass == "int16")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	205 retval = reinterpret_copy<int16NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	206 else if (numclass == "int32")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	207 retval = reinterpret_copy<int32NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	208 else if (numclass == "int64")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	209 retval = reinterpret_copy<int64NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	210 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	211 else if (numclass[0] == 'u')
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	212 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	213 if (numclass == "uint8")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	214 retval = reinterpret_copy<uint8NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	215 else if (numclass == "uint16")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	216 retval = reinterpret_copy<uint16NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	217 else if (numclass == "uint32")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	218 retval = reinterpret_copy<uint32NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	219 else if (numclass == "uint64")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	220 retval = reinterpret_copy<uint64NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	221 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	222 else if (numclass == "single")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	223 retval = reinterpret_copy<FloatNDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	224 else if (numclass == "double")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	225 retval = reinterpret_copy<NDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	226 else if (numclass == "single complex")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	227 retval = reinterpret_copy<FloatComplexNDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	228 else if (numclass == "double complex")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	229 retval = reinterpret_copy<ComplexNDArray> (data, byte_size, old_dims);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	230
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	231 if (! error_state && retval.is_undefined ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	232 error ("typecast: cannot convert to %s class", numclass.c_str ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	233 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	234 else
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	235 print_usage ();
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	236
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	237 return retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	238 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	239
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	240 template <class ArrayType>
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	241 ArrayType
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	242 do_bitpack (const boolNDArray& bitp)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	243 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	244 typedef typename ArrayType::element_type T;
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	245 octave_idx_type n = bitp.numel () / (sizeof (T) * std::numeric_limits<unsigned char>::digits);
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	246
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	247 if (n * static_cast<int> (sizeof (T)) * std::numeric_limits<unsigned char>::digits == bitp.numel ())
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	248 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	249
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	250 ArrayType retval (get_vec_dims (bitp.dims (), n));
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	251
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	252 const bool *bits = bitp.fortran_vec ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	253 char packed = reinterpret_cast<char > (retval.fortran_vec ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	254
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	255 octave_idx_type m = n * sizeof (T);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	256
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	257 for (octave_idx_type i = 0; i < m; i++)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	258 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	259 char c = bits[0];
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	260 for (int j = 1; j < std::numeric_limits<unsigned char>::digits; j++)
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	261 c \|= bits[j] << j;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	262
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	263 packed[i] = c;
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	264 bits += std::numeric_limits<unsigned char>::digits;
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	265 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	266
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	267 return retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	268 }
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	269 else
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	270 {
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	271 error ("bitpack: incorrect number of bits to make up output value");
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	272 return ArrayType ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	273 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	274 }
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	275
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	276 DEFUN (bitpack, args, ,
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	277 "-- texinfo --\n\
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	278 @deftypefn {Built-in Function} {@var{y} =} bitpack (@var{x}, @var{class})\n\
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	279 Return a new array @var{y} resulting from interpreting an array\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	280 @var{x} as raw bit patterns for data of the numeric class @var{class}.\n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	281 @var{class} must be one of the built-in numeric classes:\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	282 \n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	283 @example\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	284 @group\n\
14360 97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	285 \"char\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	286 \"int8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	287 \"int16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	288 \"int32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	289 \"int64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	290 \"uint8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	291 \"uint16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	292 \"uint32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	293 \"uint64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	294 \"double\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	295 \"single\"\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	296 @end group\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	297 @end example\n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	298 \n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10807 diff changeset	299 The number of elements of @var{x} should be divisible by the bit length of\n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	300 @var{class}. If it is not, excess bits are discarded. Bits come in\n\
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	301 increasing order of significance, i.e., @code{x(1)} is bit 0, @code{x(2)} is\n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	302 bit 1, etc. The result is a row vector if @var{x} is a row vector, otherwise\n\
a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	303 it is a column vector.\n\
11572 7d6d8c1e471f Grammarcheck Texinfo for files in src directory. Rik <octave@nomad.inbox5.com> parents: 11553 diff changeset	304 @seealso{bitunpack, typecast}\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	305 @end deftypefn")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	306 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	307 octave_value retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	308
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	309 if (args.length () == 2 && args(0).is_bool_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	310 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	311 boolNDArray bitp = args(0).bool_array_value ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	312
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	313 std::string numclass = args(1).string_value ();
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	314
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	315 if (error_state \|\| numclass.size () == 0)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	316 ;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	317 else if (numclass == "char")
9689 34d6f005db4b eliminate is_string argument from octave_value character array constructors John W. Eaton <jwe@octave.org> parents: 9671 diff changeset	318 retval = octave_value (do_bitpack<charNDArray> (bitp), '\'');
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	319 else if (numclass[0] == 'i')
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	320 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	321 if (numclass == "int8")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	322 retval = do_bitpack<int8NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	323 else if (numclass == "int16")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	324 retval = do_bitpack<int16NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	325 else if (numclass == "int32")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	326 retval = do_bitpack<int32NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	327 else if (numclass == "int64")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	328 retval = do_bitpack<int64NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	329 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	330 else if (numclass[0] == 'u')
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	331 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	332 if (numclass == "uint8")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	333 retval = do_bitpack<uint8NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	334 else if (numclass == "uint16")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	335 retval = do_bitpack<uint16NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	336 else if (numclass == "uint32")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	337 retval = do_bitpack<uint32NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	338 else if (numclass == "uint64")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	339 retval = do_bitpack<uint64NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	340 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	341 else if (numclass == "single")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	342 retval = do_bitpack<FloatNDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	343 else if (numclass == "double")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	344 retval = do_bitpack<NDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	345 else if (numclass == "single complex")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	346 retval = do_bitpack<FloatComplexNDArray> (bitp);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	347 else if (numclass == "double complex")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	348 retval = do_bitpack<ComplexNDArray> (bitp);
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	349
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	350 if (! error_state && retval.is_undefined ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	351 error ("bitpack: cannot pack to %s class", numclass.c_str ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	352 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	353 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	354 print_usage ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	355
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	356 return retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	357 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	358
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	359 template <class ArrayType>
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	360 boolNDArray
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	361 do_bitunpack (const ArrayType& array)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	362 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	363 typedef typename ArrayType::element_type T;
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	364 octave_idx_type n = array.numel () * sizeof (T) * std::numeric_limits<unsigned char>::digits;
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	365
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	366 boolNDArray retval (get_vec_dims (array.dims (), n));
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	367
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	368 const char packed = reinterpret_cast<const char > (array.fortran_vec ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	369 bool *bits = retval.fortran_vec ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	370
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	371 octave_idx_type m = n / std::numeric_limits<unsigned char>::digits;
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	372
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	373 for (octave_idx_type i = 0; i < m; i++)
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	374 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	375 char c = packed[i];
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	376 bits[0] = c & 1;
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	377 for (int j = 1; j < std::numeric_limits<unsigned char>::digits; j++)
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	378 bits[j] = (c >>= 1) & 1;
17396 0b644adf4f31 speak CHAR_BIT in C++-ese John W. Eaton <jwe@octave.org> parents: 17281 diff changeset	379 bits += std::numeric_limits<unsigned char>::digits;
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	380 }
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	381
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	382 return retval;
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	383 }
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	384
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	385 DEFUN (bitunpack, args, ,
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	386 "-- texinfo --\n\
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14360 diff changeset	387 @deftypefn {Built-in Function} {@var{y} =} bitunpack (@var{x})\n\
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	388 Return an array @var{y} corresponding to the raw bit patterns of\n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	389 @var{x}. @var{x} must belong to one of the built-in numeric classes:\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	390 \n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	391 @example\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	392 @group\n\
14360 97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	393 \"char\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	394 \"int8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	395 \"int16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	396 \"int32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	397 \"int64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	398 \"uint8\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	399 \"uint16\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	400 \"uint32\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	401 \"uint64\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	402 \"double\"\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	403 \"single\"\n\
9758 09da0bd91412 Periodic grammar check of Octave documentation files to ensure common format Rik <rdrider0-list@yahoo.com> parents: 9689 diff changeset	404 @end group\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	405 @end example\n\
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	406 \n\
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	407 The result is a row vector if @var{x} is a row vector; otherwise, it is a\n\
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10840 diff changeset	408 column vector.\n\
11572 7d6d8c1e471f Grammarcheck Texinfo for files in src directory. Rik <octave@nomad.inbox5.com> parents: 11553 diff changeset	409 @seealso{bitpack, typecast}\n\
9671 e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	410 @end deftypefn")
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	411 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	412 octave_value retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	413
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	414 if (args.length () == 1 && (args(0).is_numeric_type () \|\| args(0).is_string ()))
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	415 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	416 octave_value array = args(0);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	417
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	418 if (array.is_string ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	419 retval = do_bitunpack (array.char_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	420 else if (array.is_integer_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	421 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	422 if (array.is_int8_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	423 retval = do_bitunpack (array.int8_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	424 else if (array.is_int16_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	425 retval = do_bitunpack (array.int16_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	426 else if (array.is_int32_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	427 retval = do_bitunpack (array.int32_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	428 else if (array.is_int64_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	429 retval = do_bitunpack (array.int64_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	430 else if (array.is_uint8_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	431 retval = do_bitunpack (array.uint8_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	432 else if (array.is_uint16_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	433 retval = do_bitunpack (array.uint16_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	434 else if (array.is_uint32_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	435 retval = do_bitunpack (array.uint32_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	436 else if (array.is_uint64_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	437 retval = do_bitunpack (array.uint64_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	438 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	439 assert (0);
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	440 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	441 else if (array.is_complex_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	442 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	443 if (array.is_single_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	444 retval = do_bitunpack (array.float_complex_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	445 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	446 retval = do_bitunpack (array.complex_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	447 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	448 else if (array.is_real_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	449 {
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	450 if (array.is_single_type ())
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	451 retval = do_bitunpack (array.float_array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	452 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	453 retval = do_bitunpack (array.array_value ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	454 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	455 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	456 error ("bitunpack: invalid input class: %s", array.class_name ().c_str ());
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	457 }
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	458 else
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	459 print_usage ();
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	460
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	461 return retval;
e4b383a0effa merge reinterpret.cc into typecast.cc Jaroslav Hajek <highegg@gmail.com> parents: 9036 diff changeset	462 }

Mercurial > octave

annotate libinterp/corefcn/typecast.cc @ 17396:0b644adf4f31