MEMCPY(3) Library Functions Manual MEMCPY(3) NAME memcpy -- copy byte string LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <string.h> void * memcpy(void *dst, const void *src, size_t len); void * mempcpy(void *dst, const void *src, size_t len); DESCRIPTION The memcpy() and mempcpy() functions copy len bytes from string src to string dst. If src and dst overlap, the results are not defined. 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), strcpy(3), wmemcpy(3), wmempcpy(3) STANDARDS The memcpy() function conforms to ISO/IEC 9899:1990 ("ISO C90"). HISTORY The memcpy() function first appeared in AT&T System V UNIX and was reimple- mented for 4.3BSD-Tahoe. The mempcpy() function first appeared in FreeBSD 13.1. FreeBSD 15.1 November 18, 2023 MEMCPY(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS | HISTORY
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