BSTRING(3) Library Functions Manual BSTRING(3)NAME
bstring, bcopy, bcmp, bzero, ffs - bit and byte string operations
void bcopy(const void *src, void *dst, size_t length)
int bcmp(const void *b1, const void *b2, size_t length)
void bzero(void *dst, size_t length)
int ffs(int i)
The functions bcopy, bcmp, and bzero operate on variable length strings of bytes. They do not check for null bytes as the routines in
Bcopy copies length bytes from string src to the string dst.
Bcmp compares byte string b1 against byte string b2, returning zero if they are identical, non-zero otherwise. Both strings are assumed to
be length bytes long.
Bzero places length 0 bytes in the string b1.
Ffs find the first bit set in the argument passed it and returns the index of that bit. Bits are numbered starting at 1. A return value
of 0 indicates the value passed is zero.
The bcopy, bcmp, and bzero functions are obsolete; new code should use memmove, memcmp, and memset respectively.
The bcopy routine takes parameters backwards from memcpy, memmove, and strcpy.
4.2 Berkeley Distribution May 15, 1985 BSTRING(3)
Check Out this Related Man Page
BSTRING(3) BSD Library Functions Manual BSTRING(3)NAME
bcmp, bcopy, bzero, memccpy, memchr, memcmp, memcpy, memmove, memset -- byte string operations
Standard C Library (libc, -lc)
bcmp(const void *s1, const void *s2, size_t n);
bcopy(const void *s1, void *s2, size_t n);
bzero(void *s, size_t n);
memccpy(void *restrict s1, const void *restrict s2, int c, size_t n);
memchr(const void *s, int c, size_t n);
memcmp(const void *s1, const void *s2, size_t n);
memcpy(void *restrict s1, const void *restrict s2, size_t n);
memmove(void *s1, const void *s2, size_t n);
memset(void *s, int c, size_t n);
These functions operate on variable length strings of bytes. They do not check for terminating null bytes, as the routines listed in
See the specific manual pages for more information.
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'').
The functions bzero() and memccpy() appeared in 4.3BSD; the functions bcmp(), bcopy(), appeared in 4.2BSD.
BSD June 4, 1993 BSD
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