(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_vsnprintf

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

Header File

Defined in <SDL3/SDL_stdinc.h>

Syntax

int SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);

Function Parameters

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.

Return Value

(int) Returns the number of bytes that should be written, not counting the null-terminator char, or a negative value on error.

Remarks

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

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.

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CategoryAPI, CategoryAPIFunction, CategoryStdinc

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