SDL_isnan - Man Page

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"

int SDL_isnan(double x);

x

double-precision floating point value.

Returns non-zero if the value is NaN, 0 otherwise.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

·(3), SDL_isnanf(3)

SDL_isnanf(3).