Copy memory area
#include <string.h> void *memcpy(void *dest, const void *src, size_t n);
The memcpy() function copies n bytes from memory area src to memory area dest. The memory areas must not overlap. Use memmove(3) if the memory areas do overlap.
The memcpy() function returns a pointer to dest.
The memcpy() function is thread-safe.
SVr4, 4.3BSD, C89, C99, POSIX.1-2001.
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