usr/src/lib/libc/string/strncmp.3

.\" Copyright (c) 1990 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%
.\"
.\"     @(#)strncmp.3   5.1 (Berkeley) %G%
.\"
.TH STRNCMP 3 ""
.UC 4
.SH NAME
strncmp \- compare strings of limited length
.SH SYNOPSIS
.nf
.ft B
#include <string.h>

int
strcmp(const char *s1, const char *s2, size_t len);
.ft R
.fi
.SH DESCRIPTION
.B Strncmp
compares at most
.I len
characters in the null-terminated strings
.I s1
and
.I s2
and returns an integer greater than, equal to, or less than 0,
according as
.I s1
is lexicographically greater than, equal to, or less than
.IR s2 .
The comparison is done using unsigned characters, so that '\e200'
is greater than '\e0'.
.SH SEE ALSO
bcmp(3), memcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strncasecmp(3),
strxfrm(3)
.SH STANDARDS
.B Strncmp
conforms to ANSI X3.159-1989 (``ANSI C'').