.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
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.\" manual provided the copyright notice and this permission notice are
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.\" entire resulting derived work is distributed under the terms of a
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.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
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.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sat Jul 24 18:12:45 1993 by Rik Faith (faith@cs.unc.edu)
.TH STRCASECMP 3  1993-04-11 "" "Linux Programmer's Manual"
.SH NAME
strcasecmp, strncasecmp \- compare two strings ignoring case
.SH SYNOPSIS
.nf
.B #include <strings.h>
.sp
.BI "int strcasecmp(const char *" s1 ", const char *" s2 );
.sp
.BI "int strncasecmp(const char *" s1 ", const char *" s2 ", size_t " n );
.fi
.SH DESCRIPTION
The
.BR strcasecmp ()
function compares the two strings \fIs1\fP and
\fIs2\fP, ignoring the case of the characters.
It returns an integer
less than, equal to, or greater than zero if \fIs1\fP is found,
respectively, to be less than, to match, or be greater than \fIs2\fP.
.PP
The
.BR strncasecmp ()
function is similar, except it only compares
the first \fIn\fP characters of \fIs1\fP.
.SH "RETURN VALUE"
The
.BR strcasecmp ()
and
.BR strncasecmp ()
functions return
an integer less than, equal to, or greater than zero if \fIs1\fP
(or the first \fIn\fP bytes thereof) is found, respectively, to be
less than, to match, or be greater than \fIs2\fP.
.SH "CONFORMING TO"
4.4BSD, POSIX.1-2001.
.SH "SEE ALSO"
.BR bcmp (3),
.BR memcmp (3),
.BR strcmp (3),
.BR strcoll (3),
.BR strncmp (3),
.BR wcscasecmp (3),
.BR wcsncasecmp (3)
.SH COLOPHON
This page is part of release 3.22 of the Linux
.I man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
