# SDL_FLT_EPSILON Epsilon constant, used for comparing floating-point numbers. ## Header File Defined in [<SDL3/SDL_stdinc.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c #define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */ ``` ## Remarks Equals by default to platform-defined `FLT_EPSILON`, or `1.1920928955078125e-07F` if that's not available. ## Version This macro is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryStdinc](CategoryStdinc)