This works exactly like vsnprintf() but doesn't require access to a C runtime.
Defined in <SDL3/SDL_stdinc.h>
int SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);| char * | text | the buffer to write the string into. Must not be NULL. |
| size_t | maxlen | the maximum bytes to write, including the null-terminator. |
| const char * | fmt | a printf-style format string. Must not be NULL. |
| va_list | ap | a va_list values to be used with the format string. |
(int) Returns the number of bytes that should be written, not counting the null-terminator char, or a negative value on error.
Functions identically to SDL_snprintf(), except it takes a va_list instead of using ... variable arguments.
It is safe to call this function from any thread.
This function is available since SDL 3.2.0.