al_ustr_vappendf(3)                                        al_ustr_vappendf(3)

NAME
       al_ustr_vappendf - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              bool al_ustr_vappendf(ALLEGRO_USTR *us, const char *fmt, va_list ap)


DESCRIPTION
       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.

SEE ALSO
       al_ustr_appendf(3), al_ustr_append(3)

Allegro reference manual                                   al_ustr_vappendf(3)