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.

Portability
memcpy is ANSI C.

memcpy requires no supporting OS subroutines.

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