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

NAME
SDL_isnanf - Return whether the value is NaN.
SYNOPSIS
#include <SDL3/SDL_stdinc.h>
int SDL_isnanf(float x);
FUNCTION PARAMETERS
x floating point value.
RETURN VALUE
Returns non-zero if the value is NaN, 0 otherwise.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_isnan(3)
Simple Directmedia Layer SDL 3.2.20 SDL_isnanf(3)