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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Return the floating-point remainder of x / y

Header File

Defined in <SDL3/SDL_stdinc.h>


double SDL_fmod(double x, double y);

Function Parameters

double x the numerator.
double y the denominator. Must not be 0.

Return Value

(double) Returns the remainder of x / y.


Divides x by y, and returns the remainder.

Domain: -INF <= x <= INF, -INF <= y <= INF, y != 0

Range: -y <= z <= y

This function operates on double-precision floating point values, use SDL_fmodf for single-precision floats.

Thread Safety

It is safe to call this function from any thread.


This function is available since SDL 3.0.0.

See Also

CategoryAPI, CategoryAPIFunction, CategoryStdinc

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