al_ustr_vappendf3
Allegro 5 api
Usage
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#include <allegro5/allegro.h> bool al_ustr_vappendf(ALLEGRO_USTR *us, const char *fmt, va_list ap)
Overview
Like al_ustr_appendf(3) but you pass the variable argument list directly, instead of the arguments themselves. See al_ustr_newf(3) about the “%s” and “%c” specifiers.
Returns true on success, false on error.