Mercurial > octave-dspies
view examples/globaldemo.cc @ 18957:87cba451fd5e stable
__magick_read__.cc: fix png check for image class in older GM (bug #42834).
author | Carnë Draug <carandraug@octave.org> |
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date | Thu, 24 Jul 2014 17:37:45 +0100 |
parents | be41c30bcb44 |
children |
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#include <octave/oct.h> DEFUN_DLD (globaldemo, args, , "Global Demo") { octave_value retval; int nargin = args.length (); if (nargin != 1) print_usage (); else { std::string s = args(0).string_value (); if (! error_state) { octave_value tmp = get_global_value (s, true); if (tmp.is_defined ()) retval = tmp; else retval = "Global variable not found"; set_global_value ("a", 42.0); } } return retval; }