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

SDL_PI_F - The value of Pi, as a single-precision floating point literal.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"
#define SDL_PI_F   3.141592653589793238462643383279502884F      /**< pi (float) */

This macro is available since SDL 3.2.0.

(3), SDL_PI_D(3)

SDL 3.2.10 Simple Directmedia Layer