octave: scripts/miscellaneous/swapbytes.m annotate

annotate scripts/miscellaneous/swapbytes.m @ 27919:1891570abac8

update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.

author	John W. Eaton <jwe@octave.org>
date	Mon, 06 Jan 2020 22:29:51 -0500
parents	b442ec6dda5c
children	bd51beb6205e

rev	line source
27919 1891570abac8 update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 27918 diff changeset	1 ## Copyright (C) 2007-2020 The Octave Project Developers
27918 b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26600 diff changeset	2 ##
b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26600 diff changeset	3 ## See the file COPYRIGHT.md in the top-level directory of this distribution
b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26600 diff changeset	4 ## or <https://octave.org/COPYRIGHT.html/>.
b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26600 diff changeset	5 ##
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	6 ##
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	7 ## This file is part of Octave.
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	8 ##
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23220 diff changeset	9 ## Octave is free software: you can redistribute it and/or modify it
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	10 ## 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: 23220 diff changeset	11 ## the Free Software Foundation, either version 3 of the License, or
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	12 ## (at your option) any later version.
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	13 ##
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	14 ## Octave is distributed in the hope that it will be useful, but
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	15 ## WITHOUT ANY WARRANTY; without even the implied warranty of
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	17 ## GNU General Public License for more details.
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	18 ##
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	19 ## 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: 6869 diff changeset	20 ## 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: 23220 diff changeset	21 ## <https://www.gnu.org/licenses/>.
6869 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 ## -- texinfo --
20852 516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20164 diff changeset	24 ## @deftypefn {} {} swapbytes (@var{x})
20164 df437a52bcaf doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	25 ## Swap the byte order on values, converting from little endian to big endian
df437a52bcaf doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	26 ## and vice versa.
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	27 ##
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	28 ## For example:
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	29 ##
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	30 ## @example
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	31 ## @group
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	32 ## swapbytes (uint16 (1:4))
26600 f6730533820e doc: clean up doc example blocks for accuracy and consistent formatting Mike Miller <mtmiller@octave.org> parents: 26376 diff changeset	33 ## @result{} 256 512 768 1024
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	34 ## @end group
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	35 ## @end example
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	36 ##
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	37 ## @seealso{typecast, cast}
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	38 ## @end deftypefn
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	39
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	40 function y = swapbytes (x)
12847 619c1895e3e0 codesprint: Add tests for swapbytes.m Rik <octave@nomad.inbox5.com> parents: 12575 diff changeset	41
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	42 if (nargin != 1)
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	43 print_usage ();
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	44 endif
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	45
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	46 cls = class (x);
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	47 if (strcmp (cls, "int8") \|\| strcmp (cls, "uint8") \|\| isempty (x))
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	48 y = x;
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	49 else
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	50 if (strcmp (cls, "int16") \|\| strcmp (cls, "uint16"))
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	51 nb = 2;
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	52 elseif (strcmp (cls, "single")
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	53 \|\| strcmp (cls, "int32") \|\| strcmp (cls, "uint32"))
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	54 nb = 4;
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	55 elseif (strcmp (cls, "double")
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	56 \|\| strcmp (cls, "int64") \|\| strcmp (cls, "uint64"))
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	57 nb = 8;
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	58 else
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	59 error ("swapbytes: invalid object of class '%s'", cls);
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	60 endif
f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	61 y = reshape (typecast (reshape (typecast (x(:), "uint8"), nb, numel (x))
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	62 ([nb : -1 : 1], :) (:), cls), size (x));
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	63 endif
12847 619c1895e3e0 codesprint: Add tests for swapbytes.m Rik <octave@nomad.inbox5.com> parents: 12575 diff changeset	64
6869 f9c893831e68 [project @ 2007-09-06 16:38:44 by dbateman] dbateman parents: diff changeset	65 endfunction
12847 619c1895e3e0 codesprint: Add tests for swapbytes.m Rik <octave@nomad.inbox5.com> parents: 12575 diff changeset	66
619c1895e3e0 codesprint: Add tests for swapbytes.m Rik <octave@nomad.inbox5.com> parents: 12575 diff changeset	67
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	68 %!assert (swapbytes (uint16 (1:4)), uint16 ([256 512 768 1024]))
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	69 %!test
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	70 %! assert (swapbytes (swapbytes (pi)), pi);
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	71 %! assert (swapbytes (swapbytes (single (pi))), single (pi));
12847 619c1895e3e0 codesprint: Add tests for swapbytes.m Rik <octave@nomad.inbox5.com> parents: 12575 diff changeset	72
19209 827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	73 ## Test input validation
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	74 %!error swapbytes ()
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	75 %!error swapbytes (1, 2)
827ac8b5ae07 swapbytes.m: Add support for 'single' type. Rik <rik@octave.org> parents: 17744 diff changeset	76 %!error <invalid object of class 'cell'> swapbytes ({1})

Mercurial > octave

annotate scripts/miscellaneous/swapbytes.m @ 27919:1891570abac8