usr/src/lib/libc/string/strcasecmp.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%
.\"
.\"     @(#)strcasecmp.3        5.1 (Berkeley) %G%
.\"
.TH STRCASECMP 3 ""
.UC 7
.SH NAME
strcasecmp \- compare strings, ignoring case
.SH SYNOPSIS
.nf
.ft B
#include <string.h>

int
strcasecmp(const char *s1, const char *s2);
.ft R
.fi
.SH DESCRIPTION
.B Strcasecmp
compares 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
after translation of each corresponding character to lower-case.
The strings themselves are not modified.
The comparison is done using unsigned characters, so that '\e200'
is greater than '\e0'.
.SH SEE ALSO
bcmp(3), memcmp(3), strcmp(3), strcoll(3), strncasecmp(3),
strncmp(3), strxfrm(3)