Mercurial > octave
view scripts/miscellaneous/computer.m @ 33559:62fca924fe85 default tip @
doc: Update NEWS.10.md file.
* NEWS.10.md: Indent NEWS.10.md for clarity.
Add note about changes to colormap() functionality.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 09 May 2024 18:23:33 -0700 |
parents | 2e484f9f1f18 |
children |
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######################################################################## ## ## Copyright (C) 2004-2024 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave is free software: you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} computer () ## @deftypefnx {} {@var{comp} =} computer () ## @deftypefnx {} {[@var{comp}, @var{maxsize}] =} computer () ## @deftypefnx {} {[@var{comp}, @var{maxsize}, @var{endian}] =} computer () ## @deftypefnx {} {@var{arch} =} computer ("arch") ## Print or return a string of the form @var{cpu}-@var{vendor}-@var{os} that ## identifies the type of computer that Octave is running on. ## ## If invoked with an output argument, the value is returned instead of ## printed. For example: ## ## @example ## @group ## computer () ## @print{} x86_64-pc-linux-gnu ## ## mycomp = computer () ## @result{} mycomp = x86_64-pc-linux-gnu ## @end group ## @end example ## ## If two output arguments are requested, also return the maximum number of ## elements for an array. This will depend on whether Octave has been ## compiled with 32-bit or 64-bit index vectors. ## ## If three output arguments are requested, also return the byte order of the ## current system as a character (@qcode{"B"} for big-endian or @qcode{"L"} ## for little-endian). ## ## If the argument @qcode{"arch"} is specified, return a string indicating the ## architecture of the computer on which Octave is running. ## ## Results may be different if Octave was invoked with the --traditional ## option. ## @seealso{isunix, ismac, ispc} ## @end deftypefn function [comp, maxsize, endian] = computer (arch) if (nargin == 1 && ! strcmpi (arch, "arch")) error ('computer: "arch" is only valid argument'); endif canonical_host_type = __octave_config_info__ ("canonical_host_type"); traditional = __traditional__ (); enable_64 = __octave_config_info__ ("ENABLE_64"); host_parts = ostrsplit (canonical_host_type, "-"); if (nargin == 0) host = ""; if (traditional && enable_64) if (ismac ()) host = "MACI64"; elseif (ispc ()) host = "PCWIN64"; elseif (strcmp ([host_parts{3} "-" host_parts{1}], "linux-x86_64")) host = "GLNXA64"; endif endif if (isempty (host)) host = canonical_host_type; elseif (strcmp (host, "unknown")) host = "Hi Dave, I'm a HAL-9000"; endif if (nargout == 0) disp (host); else comp = host; if (nargout > 1) if (enable_64) if (traditional) maxsize = 2^48-1; else maxsize = 2^63-1; endif else maxsize = 2^31-1; endif endif if (nargout > 2) if (__octave_config_info__ ("words_big_endian")) endian = "B"; elseif (__octave_config_info__ ("words_little_endian")) endian = "L"; else endian = "?"; endif endif endif else ## "arch" case. comp = ""; if (traditional && enable_64) if (ismac ()) comp = "maci64"; elseif (ispc ()) comp = "win64"; elseif (strcmp ([host_parts{3} "-" host_parts{1}], "linux-x86_64")) comp = "glnxa64"; endif endif if (isempty (comp)) comp = [host_parts{3} "-" host_parts{1}]; if (numel (host_parts) == 4) comp = [host_parts{4} "-" comp]; endif endif endif endfunction %!assert (ischar (computer ())) %!assert (computer (), __octave_config_info__ ("canonical_host_type")) %!assert (ischar (computer ("arch"))) %!error computer (1,2) %!error <"arch" is only valid argument> computer ("xyz")