1.\" $NetBSD: wcscasecmp.3,v 1.6 2016/07/14 16:09:56 abhinav Exp $ 2.\" 3.\" Copyright (c) 1990, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" Chris Torek. 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)wcscasecmp.3 8.1 (Berkeley) 6/9/93 33.\" 34.Dd July 13, 2016 35.Dt WCSCASECMP 3 36.Os 37.Sh NAME 38.Nm wcscasecmp , 39.Nm wcsncasecmp 40.Nd compare wide-character strings, ignoring case 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In wchar.h 45.Ft int 46.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2" 47.Ft int 48.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t len" 49.Sh DESCRIPTION 50The 51.Fn wcscasecmp 52and 53.Fn wcsncasecmp 54functions 55compare the nul-terminated strings 56.Fa s1 57and 58.Fa s2 59and return an integer greater than, equal to, or less than 0, 60according to whether 61.Fa s1 62is lexicographically greater than, equal to, or less than 63.Fa s2 64after translation of each corresponding character to lower-case. 65The strings themselves are not modified. 66.Pp 67The 68.Fn wcsncasecmp 69function compares at most 70.Fa len 71characters. 72.Sh SEE ALSO 73.Xr wcscmp 3 74.Sh STANDARDS 75The 76.Fn wcscasecmp 77and 78.Fn wcsncasecmp 79functions conform to 80.St -p1003.1-2008 . 81.Sh HISTORY 82The 83.Fn wcscasecmp 84and 85.Fn wcsncasecmp 86functions first appeared in 87.Nx 4.0 . 88.Sh NOTES 89If 90.Fa len 91is 0, 92.Fn wcsncasecmp 93always returns 0. 94