octave-nkf: scripts/general/bitget.m annotate

annotate scripts/general/bitget.m @ 17392:e09cd91168d1

Support arguments of class single in bit manipulation functions (bug #34502) * bitfcns.cc (bitop, Fbitshift): Support arguments of class single. * bitcmp.m, bitget.m, bitset.m: Support arguments of class single. Add tests.

author	Mike Miller <mtmiller@ieee.org>
date	Sun, 08 Sep 2013 17:55:40 -0400
parents	7d8d194f3f63
children	d63878346099

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 12795 diff changeset	1 ## Copyright (C) 2004-2012 David Bateman
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	2 ##
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	3 ## This file is part of Octave.
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	4 ##
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	6 ## under the terms of the GNU General Public License as published by
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	8 ## your option) any later version.
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	9 ##
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	13 ## General Public License for more details.
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	14 ##
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	15 ## 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: 6046 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6046 diff changeset	17 ## <http://www.gnu.org/licenses/>.
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	18
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	19 ## -- texinfo --
11563 3c6e8aaa9555 Grammarcheck m-files before 3.4 release. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	20 ## @deftypefn {Function File} {@var{c} =} bitget (@var{A}, @var{n})
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	21 ## Return the status of bit(s) @var{n} of unsigned integers in @var{A}
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	22 ## the lowest significant bit is @var{n} = 1.
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	23 ##
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	24 ## @example
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 7017 diff changeset	25 ## @group
4920 b22a7a1db0d5 [project @ 2004-07-27 18:15:25 by jwe] jwe parents: 4916 diff changeset	26 ## bitget (100, 8:-1:1)
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11563 diff changeset	27 ## @result{} 0 1 1 0 0 1 0 0
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 7017 diff changeset	28 ## @end group
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	29 ## @end example
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5307 diff changeset	30 ## @seealso{bitand, bitor, bitxor, bitset, bitcmp, bitshift, bitmax}
5053 c08cb1098afc [project @ 2004-10-19 23:10:54 by jwe] jwe parents: 5003 diff changeset	31 ## @end deftypefn
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	32
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	33 ## Liberally based of the version by Kai Habel from octave-forge
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	34
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	35 function C = bitget (A, n)
4920 b22a7a1db0d5 [project @ 2004-07-27 18:15:25 by jwe] jwe parents: 4916 diff changeset	36
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	37 if (nargin != 2)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5642 diff changeset	38 print_usage ();
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	39 endif
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	40
4950 0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	41 if (isa (A, "double"))
17391 7d8d194f3f63 bitget.m, bitset.m: Make max bit index consistent Mike Miller <mtmiller@ieee.org> parents: 14363 diff changeset	42 Amax = ceil (log2 (bitmax));
4950 0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	43 _conv = @double;
17392 e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	44 elseif (isa (A, "single"))
e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	45 Amax = ceil (log2 (bitmax ("single")));
e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	46 _conv = @single;
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	47 else
4950 0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	48 if (isa (A, "uint8"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	49 Amax = 8;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	50 _conv = @uint8;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	51 elseif (isa (A, "uint16"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	52 Amax = 16;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	53 _conv = @uint16;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	54 elseif (isa (A, "uint32"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	55 Amax = 32;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	56 _conv = @uint32;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	57 elseif (isa (A, "uint64"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	58 Amax = 64;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	59 _conv = @uint64;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	60 elseif (isa (A, "int8"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	61 Amax = 8;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	62 _conv = @int8;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	63 elseif (isa (A, "int16"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	64 Amax = 16;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	65 _conv = @int16;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	66 elseif (isa (A, "int32"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	67 Amax = 32;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	68 _conv = @int32;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	69 elseif (isa (A, "int64"))
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	70 Amax = 64;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	71 _conv = @int64;
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	72 else
10635 d1978e7364ad Print name of function in error() string messages. Rik <octave@nomad.inbox5.com> parents: 9245 diff changeset	73 error ("bitget: invalid class %s", class (A));
4950 0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	74 endif
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	75 endif
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	76
4950 0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	77 m = double (n(:));
0896307b1b48 [project @ 2004-08-31 21:26:35 by jwe] jwe parents: 4920 diff changeset	78 if (any (m < 1) \|\| any (m > Amax))
12480 139f993936af Uppercase variables in script error strings. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	79 error ("bitget: N must be in the range [1,%d]", Amax);
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	80 endif
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	81
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	82 C = bitand (A, bitshift (_conv (1), uint8 (n) - uint8 (1))) != _conv (0);
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	83
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: diff changeset	84 endfunction
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	85
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	86
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	87 %!test
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	88 %! assert (bitget ([4, 14], [3, 3]), logical ([1, 1]));
17392 e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	89 %! assert (bitget (single ([4, 14]), [3, 3]), logical ([1, 1]));
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	90 %! pfx = {"", "u"};
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	91 %! for i = 1:2
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	92 %! for prec = [8, 16, 32, 64]
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	93 %! fcn = str2func (sprintf ("%sint%d", pfx{i}, prec));
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	94 %! assert (bitget (fcn ([4, 14]), [3, 3]), logical ([1, 1]));
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	95 %! endfor
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	96 %! endfor
9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	97
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	98 %!error bitget (0, 0)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	99 %!error bitget (0, 55)
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	100
17392 e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	101 %!error bitget (single (0), 0)
e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	102 %!error bitget (single (0), 26)
e09cd91168d1 Support arguments of class single in bit manipulation functions (bug #34502) Mike Miller <mtmiller@ieee.org> parents: 17391 diff changeset	103
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	104 %!error bitget (int8 (0), 9)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	105 %!error bitget (uint8 (0), 9)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	106
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	107 %!error bitget (int16 (0), 17)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	108 %!error bitget (uint16 (0), 17)
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	109
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	110 %!error bitget (int32 (0), 33)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	111 %!error bitget (uint32 (0), 33)
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	112
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	113 %!error bitget (int64 (0), 65)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	114 %!error bitget (uint64 (0), 65)
12795 9e7ebbaf69ff codesprint: new tests for files in scripts/general directory John W. Eaton <jwe@octave.org> parents: 12480 diff changeset	115
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	116 %!error bitget (1)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	117 %!error bitget (1, 2, 3)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	118

Mercurial > octave-nkf

annotate scripts/general/bitget.m @ 17392:e09cd91168d1