Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_PI_F - The value of Pi, as a single-precision floating point literal.
SYNOPSIS
#include <SDL3/SDL_stdinc.h>
#define SDL_PI_F 3.141592653589793238462643383279502884F /**< pi (float) */
AVAILABILITY
This macro is available since SDL 3.2.0.
SEE ALSO
SDL_PI_D(3)
Simple Directmedia Layer SDL 3.2.20 SDL_PI_F(3)