freebsd-dev/lib/libc/string/bstring.3
1994-05-27 05:00:24 +00:00

110 lines
3.3 KiB
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.\" 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.
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer.
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.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
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.\" may be used to endorse or promote products derived from this software
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.\" @(#)bstring.3 8.1 (Berkeley) 6/4/93
.\"
.Dd June 4, 1993
.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 <string.h>
.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 .