DOKK / manpages / debian 13 / libsdl3-doc / SDL_vasprintf.3.en
SDL_vasprintf(3) SDL3 FUNCTIONS SDL_vasprintf(3)

SDL_vasprintf - This works exactly like vasprintf() but doesn't require access to a C runtime.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"
int SDL_vasprintf(char **strp, const char *fmt, va_list ap);

Functions identically to SDL_asprintf (), except it takes a va_list instead of using ... variable arguments.

on output, is set to the new string. Must not be NULL.
a printf-style format string. Must not be NULL.
a va_list values to be used with the format string.

Returns the number of bytes in the newly-allocated string, not counting the null-terminator char, or a negative value on error.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

SDL 3.2.10 Simple Directmedia Layer