This is similar to the GError concept used in glib, the C utility library underpinning the GTK+ UI framework. API documentation: http://library.gnome.org/devel

This is similar to the GError concept used in glib, the C utility library underpinning the GTK+ UI framework. API documentation: http://library.gnome.org/devel/glib/stable/glib-Error-Reporting.html http://library.gnome.org/devel/glib/stable/glib-Error-Report.... Of course, glib being C it cannot provide the same level of checking that C++ can do, so it's quite basic, but also quite nice to work with.