bstring.3   [plain text]


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.\"     @(#)bstring.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD: src/lib/libc/string/bstring.3,v 1.8 2007/01/09 00:28:11 imp Exp $
.\"
.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 LIBRARY
.Lb libc
.Sh SYNOPSIS
.In strings.h
.Ft int
.Fo bcmp
.Fa "const void *s1"
.Fa "const void *s2"
.Fa "size_t n"
.Fc
.Ft void
.Fo bcopy
.Fa "const void *s1"
.Fa "void *s2"
.Fa "size_t n"
.Fc
.Ft void
.Fo bzero
.Fa "void *s"
.Fa "size_t n"
.Fc
.In string.h
.Ft void *
.Fo memccpy
.Fa "void *restrict s1"
.Fa "const void *restrict s2"
.Fa "int c"
.Fa "size_t n"
.Fc
.Ft void *
.Fo memchr
.Fa "const void *s"
.Fa "int c"
.Fa "size_t n"
.Fc
.Ft int
.Fo memcmp
.Fa "const void *s1"
.Fa "const void *s2"
.Fa "size_t n"
.Fc
.Ft void *
.Fo memcpy
.Fa "void *restrict s1"
.Fa "const void *restrict s2"
.Fa "size_t n"
.Fc
.Ft void *
.Fo memmove
.Fa "void *s1"
.Fa "const void *s2"
.Fa "size_t n"
.Fc
.Ft void *
.Fo memset
.Fa "void *s"
.Fa "int c"
.Fa "size_t n"
.Fc
.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 LEGACY SYNOPSIS
.Fd #include <string.h>
.Pp
The include file
.In string.h
is necessary and sufficient for all functions.
.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 ,
.Xr compat 5
.Sh STANDARDS
The functions
.Fn memchr ,
.Fn memcmp ,
.Fn memcpy ,
.Fn memmove ,
and
.Fn memset
conform to
.St -isoC .
.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 .