On Sun, Jan 31, 2010 at 04:10:00PM +0000, james morris wrote: > > A user has reported a problem with my app being unable to load a settings > file from the command line when the program runs without a GUI. > > The OPs locale uses commas as the decimal point and the programs use of > locale changes when GTK is initialized. > > However, the same file which does not load from the command line without > a GUI will load with the GUI up. > > I want these files to always be written in the "C" locale so they're > portable across locales, but I don't want to clobber the GUI to do so. > > I've read archived posts recommending to use the glib conversion > functions, however these are limited to double precision, and the > minimum precision my app is using is long double, as it also uses the > MPFR library for unlimited multiple precision maths.
Look at the GLib conversion functions and write your own for MPFR types. It is a matter of checking the locale's decimal separator and fixing the string representation accordingly. > I've not had to deal with locales before, and I'm trying to understand > what GTK does to the locale when it initializes so I can work around it > and save data files as "C" locale. I've tried adding > setlocale(LC_NUMERIC, "C") to the start of main, and after calling > gtk_init, but it seems to make no difference. Generally, changing locale locally is fragile and better avoided. Yeti _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
