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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!)


Truncate x to an integer.

Header File

Defined in <SDL3/SDL_stdinc.h>


float SDL_truncf(float x);

Function Parameters

float x floating point value.

Return Value

(float) Returns x truncated to an integer.


Rounds x to the next closest integer to 0. This is equivalent to removing the fractional part of x, leaving only the integer part.

Domain: -INF <= x <= INF

Range: -INF <= y <= INF, y integer

This function operates on single-precision floating point values, use SDL_truncf for double-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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