NAME

memcpy — copy byte string

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <string.h>

void *
memcpy(void * restrict dst, const void * restrict src, size_t len);

void *
mempcpy(void * restrict dst, const void * restrict src, size_t len);

DESCRIPTION

The memcpy() and mempcpy() functions copy len bytes from string src to string dst. The arguments must not overlap -- behavior if the arguments overlap is undefined. To copy byte strings that overlap, use memmove(3).

RETURN VALUES

The memcpy() function returns the original value of dst.

The mempcpy() function returns a pointer to the byte after the last written byte.

SEE ALSO

bcopy(3), memccpy(3), memmove(3), wmemcpy(3), wmempcpy(3)

STANDARDS

The memcpy() function conforms to ISO/IEC 9899:1999 (“ISO C99”).