annotate scripts/miscellaneous/computer.m @ 12642:f96b9b9f141b stable

doc: Periodic grammarcheck and spellcheck of documentation. * func.txi: Correct two misspellings * cumtrapz.m, dblquad.m, quadgk.m, quadl.m, quadv.m, trapz.m, triplequad.m, cond.m, gmres.m, bzip2.m, compare_versions.m, getappdata.m, unpack.m, ver.m, glpk.m, pkg.m, axis.m, uigetdir.m, uigetfile.m, view.m, prctile.m, quantile.m, unidcdf.m, unidinv.m, isstrprop.m, balance.cc, besselj.cc, cellfun.cc, colamd.cc, dot.cc, eigs.cc, fftw.cc, matrix_type.cc, pinv.cc, qr.cc, quad.cc, quadcc.cc, qz.cc, regexp.cc, schur.cc, time.cc (gmtime), typecast.cc urlwrite.cc bitfcns.cc (bitshift), data.cc (rem, norm, merge) debug.cc (dbstatus), dirfns.cc (glob), file-io.cc (freport), load-path.cc (genpath), load-save.cc (save), mappers.cc (islower, isupper, tolower, toupper) oct-hist.cc (edit_history), ov-fcn-inline.cc (vectorize), ov.cc (subsref), syscalls.cc (stat), variables.cc (whos, clear): Improve docstrings. Removed trailing whitespace characters on line.
author Rik <octave@nomad.inbox5.com>
date Sun, 01 May 2011 11:39:50 -0700
parents c792872f8942
children 9bebb2322c4e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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fd0a3ac60b0e update copyright notices
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2004-2011 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {[@var{c}, @var{maxsize}, @var{endian}] =} computer ()
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21 ## Print or return a string of the form @var{cpu}-@var{vendor}-@var{os}
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22 ## that identifies the kind of computer Octave is running on. If invoked
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23 ## with an output argument, the value is returned instead of printed. For
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693e22af08ae Grammarcheck documentation of m-files
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24 ## example:
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25 ##
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26 ## @example
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27 ## @group
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28 ## computer ()
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29 ## @print{} i586-pc-linux-gnu
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30 ##
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31 ## x = computer ()
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32 ## @result{} x = "i586-pc-linux-gnu"
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33 ## @end group
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34 ## @end example
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35 ##
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36 ## If two output arguments are requested, also return the maximum number
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37 ## of elements for an array.
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38 ##
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39 ## If three output arguments are requested, also return the byte order
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40 ## of the current system as a character (@code{"B"} for big-endian or
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41 ## @code{"L"} for little-endian).
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42 ## @end deftypefn
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43
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44 function [c, maxsize, endian] = computer ()
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45
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46 if (nargin != 0)
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47 warning ("computer: ignoring extra arguments");
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48 endif
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49
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50 msg = octave_config_info ("canonical_host_type");
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51
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52 if (strcmp (msg, "unknown"))
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53 msg = "Hi Dave, I'm a HAL-9000";
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54 endif
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55
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56 if (nargout == 0)
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57 printf ("%s\n", msg);
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58 else
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59 c = msg;
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60 if (strcmp (octave_config_info ("USE_64_BIT_IDX_T"), "true"))
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61 maxsize = 2^63-1;
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62 else
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63 maxsize = 2^31-1;
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64 endif
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65 if (octave_config_info ("words_big_endian"))
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66 endian = "B";
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67 elseif (octave_config_info ("words_little_endian"))
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68 endian = "L";
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69 else
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70 endian = "?";
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71 endif
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72 endif
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73
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74 endfunction
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75
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76 %!assert((ischar (computer ())
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77 %! && computer () == octave_config_info ("canonical_host_type")));
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78
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79 %!warning a =computer(2);
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