memcpy : copy memory regions

Synopsis

#include <string.h>
void* memcpy(void *out, const void *in, size_t n);
```### Description

This function copies n bytes from the memory region pointed to by in to the memory region pointed to by out.

If the regions overlap, the behavior is undefined.### Returns

memcpy returns a pointer to the first byte of the out region.

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