memmove : move possibly overlapping memory

Synopsis

#include <string.h>
void *memmove(void *dst, const void *src, size_t length);
```### Description

This function moves length characters from the block of memory starting at *src to the memory starting at *dst. memmove reproduces the characters correctly at *dst even if the two areas overlap.### Returns

The function returns dst as passed.

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**Authoritative source**: BUSMASTER DITA help source `memmove.dita`, compiled into `BUSMASTER.CHM` with the application.