freebsd-dev/lib/libc/string/strcmp.3
Alexey Zelkin 25bb73e063 Introduce ".Lb" macro to libc manpages.
More libraries manpages updates following.
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.\" Copyright (c) 1990, 1991, 1993
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.\" @(#)strcmp.3 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dt STRCMP 3
.Os
.Sh NAME
.Nm strcmp ,
.Nm strncmp
.Nd compare strings
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft int
.Fn strcmp "const char *s1" "const char *s2"
.Ft int
.Fn strncmp "const char *s1" "const char *s2" "size_t len"
.Sh DESCRIPTION
The
.Fn strcmp
and
.Fn strncmp
functions
lexicographically compare the null-terminated strings
.Fa s1
and
.Fa s2 .
.Pp
The
.Fn strncmp
compares not more than
.Fa len
characters.
.Sh RETURN VALUES
The
.Fn strcmp
and
.Fn strncmp
return an integer greater than, equal to, or less than 0, according
as the string
.Fa s1
is greater than, equal to, or less than the string
.Fa s2 .
The comparison is done using unsigned characters, so that
.Ql \e200
is greater than
.Ql \e0 .
.Sh SEE ALSO
.Xr bcmp 3 ,
.Xr memcmp 3 ,
.Xr strcasecmp 3 ,
.Xr strcoll 3 ,
.Xr strxfrm 3
.Sh STANDARDS
The
.Fn strcmp
and
.Fn strncmp
functions
conform to
.St -ansiC .