Mercurial > octave
view examples/code/unwinddemo.cc @ 31212:55415fa6a20f
svgconvert: Use Lossless encoding of images when available (bug #52193)
* acinclude.m4: Check that QPainter::LosslessImageRendering flag is available.
* octave-svgconvert.cc (draw): Use new flag if available.
* print.m (doc): Update word of caution about svgconvert and images.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Mon, 29 Aug 2022 16:36:34 +0200 |
parents | 28913793f678 |
children |
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#include <octave/oct.h> #include <octave/unwind-prot.h> void my_err_handler (const char *fmt, ...) { // Do nothing!! } void my_err_with_id_handler (const char *id, const char *fmt, ...) { // Do nothing!! } DEFUN_DLD (unwinddemo, args, nargout, "Unwind Demo") { if (args.length () < 2) print_usage (); NDArray a = args(0).array_value (); NDArray b = args(1).array_value (); // Create unwind_action objects. At the end of the enclosing scope, // destructors for these objects will call the given functions with // the specified arguments. octave::unwind_action restore_warning_handler (set_liboctave_warning_handler, current_liboctave_warning_handler); octave::unwind_action restore_warning_with_id_handler (set_liboctave_warning_with_id_handler, current_liboctave_warning_with_id_handler); set_liboctave_warning_handler (my_err_handler); set_liboctave_warning_with_id_handler (my_err_with_id_handler); return octave_value (quotient (a, b)); }