NAME

bcmp, bcopy, bzero, memccpy, memchr, memcmp, memcpy, memmove, memset — byte string operations

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <strings.h>

int
bcmp(const void *s1, const void *s2, size_t n);

void
bcopy(const void *s1, void *s2, size_t n);

void
bzero(void *s, size_t n);

#include <string.h>

void *
memccpy(void *restrict s1, const void *restrict s2, int c, size_t n);

void *
memchr(const void *s, int c, size_t n);

int
memcmp(const void *s1, const void *s2, size_t n);

void *
memcpy(void *restrict s1, const void *restrict s2, size_t n);

void *
memmove(void *s1, const void *s2, size_t n);

void *
memset(void *s, int c, size_t n);

DESCRIPTION

These functions operate on variable length strings of bytes. They do not check for terminating null bytes, as the routines listed in string(3) do.

See the specific manual pages for more information.

LEGACY SYNOPSIS

#include <string.h>

The include file <string.h> is necessary and sufficient for all functions.

SEE ALSO

bcmp(3), bcopy(3), bzero(3), memccpy(3), memchr(3), memcmp(3), memcpy(3), memmove(3), memset(3), compat(5)

STANDARDS

The functions memchr(), memcmp(), memcpy(), memmove(), and memset() conform to ISO/IEC 9899:1990 (“ISO C90”).

HISTORY

The functions bzero() and memccpy() appeared in 4.3BSD; the functions bcmp(), bcopy(), appeared in 4.2BSD.