(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_trunc

Truncate x to an integer.

Header File

Defined in <SDL3/SDL_stdinc.h>

Syntax

double SDL_trunc(double x);

Function Parameters

double

x

floating point value.

Return Value

(double) Returns x truncated to an integer.

Remarks

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 double-precision floating point values, use SDL_truncf for single-precision floats.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.

See Also

• SDL_truncf
• SDL_fmod
• SDL_ceil
• SDL_floor
• SDL_round
• SDL_lround

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CategoryAPI, CategoryAPIFunction, CategoryStdinc

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