.\" Copyright (c) 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" This code is derived from software contributed to Berkeley by .\" Chris Torek. .\" %sccs.include.redist.man% .\" .\" @(#)bstring.3 8.1 (Berkeley) 06/04/93 .\" .Dd .Dt BSTRING 3 .Os .Sh NAME .Nm bcmp , .Nm bcopy , .Nm bzero , .Nm memccpy , .Nm memchr , .Nm memcmp , .Nm memcpy , .Nm memmove, .Nm memset .Nd byte string operations .Sh SYNOPSIS .Fd #include .Ft int .Fn bcmp "const void *b1" "const void *b2" "size_t len" .Ft void .Fn bcopy "const void *src" "void *dst" "size_t len" .Ft void .Fn bzero "void *b" "size_t len" .Ft void * .Fn memchr "const void *b" "int c" "size_t len" .Ft int .Fn memcmp "const void *b1" "const void *b2" "size_t len" .Ft void * .Fn memccpy "void *dst" "const void *src" "int c" "size_t len" .Ft void * .Fn memcpy "void *dst" "const void *src" "size_t len" .Ft void * .Fn memmove "void *dst" "const void *src" "size_t len" .Ft void * .Fn memset "void *b" "int c" "size_t len" .Sh DESCRIPTION These functions operate on variable length strings of bytes. They do not check for terminating null bytes as the routines listed in .Xr string 3 do. .Pp See the specific manual pages for more information. .Sh SEE ALSO .Xr bcmp 3 , .Xr bcopy 3 , .Xr bzero 3 , .Xr memccpy 3 , .Xr memchr 3 , .Xr memcmp 3 , .Xr memcpy 3 , .Xr memmove 3 , .Xr memset 3 .Sh STANDARDS The functions .Fn memchr , .Fn memcmp , .Fn memcpy , .Fn memmove , and .Fn memset conform to .St -ansiC . .Sh HISTORY The functions .Fn bzero and .Fn memccpy appeared in .Bx 4.3 ; the functions .Fn bcmp , .Fn bcopy , appeared in .Bx 4.2 .