DOKK / manpages / debian 13 / libsdl3-doc / SDL_SINT64_C.3.en
SDL_SINT64_C(3) SDL3 FUNCTIONS SDL_SINT64_C(3)

SDL_SINT64_C - Append the 64 bit integer suffix to a signed integer literal.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"
#define SDL_SINT64_C(c)  c ## LL  /* or whatever the current compiler uses. */

This helps compilers that might believe a integer literal larger than 0xFFFFFFFF is overflowing a 32-bit value. Use SDL_SINT64_C(0xFFFFFFFF1) instead of 0xFFFFFFFF1 by itself.

This macro is available since SDL 3.2.0.

(3), SDL_UINT64_C(3)

SDL 3.2.10 Simple Directmedia Layer