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

# SDL_trunc

Truncate `x`

to an integer.

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.

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

CategoryAPI, CategoryAPIFunction, CategoryStdinc