---
name: "SDL_memmove"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_memmove"
---

# SDL\_memmove(3)

Copy memory ranges that might overlap.

## NAME

SDL\_memmove - Copy memory ranges that might overlap.

## HEADER FILE

Defined in SDL3/SDL\_stdinc.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**void \* SDL\_memmove(void \*dst, const void \*src, size\_t len);**

## DESCRIPTION

It is okay for the memory regions to overlap. If you are confident that the regions never overlap, using  **SDL\_memcpy** () may improve performance.

## FUNCTION PARAMETERS

- *dst*

  The destination memory region. Must not be NULL.

- *src*

  The source memory region. Must not be NULL.

- *len*

  The length in bytes of both **dst** and **src** .

## RETURN VALUE

Returns **dst** .

## THREAD SAFETY

It is safe to call this function from any thread.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_memcpy**(3)](/SDL_memcpy/3.md)