DOKK / manpages / debian 11 / allegro5-doc / al_ustr_vappendf.3alleg5.en
al_ustr_vappendf(3alleg5) al_ustr_vappendf(3alleg5)

al_ustr_vappendf - Allegro 5 API

#include <allegro5/allegro.h>
bool al_ustr_vappendf(ALLEGRO_USTR *us, const char *fmt, va_list ap)
    

Like al_ustr_appendf(3alleg5) but you pass the variable argument list directly, instead of the arguments themselves. See al_ustr_newf(3alleg5) about the “%s” and “%c” specifiers.

Returns true on success, false on error.

al_ustr_appendf(3alleg5), al_ustr_append(3alleg5)

Allegro reference manual