1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 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.\" @(#)strcoll.3 8.1 (Berkeley) 6/4/93 33.\" 34.Dd June 4, 1993 35.Dt STRCOLL 3 36.Os 37.Sh NAME 38.Nm strcoll 39.Nd compare strings according to current collation 40.Sh LIBRARY 41.Lb libc 42.Sh SYNOPSIS 43.In string.h 44.Ft int 45.Fn strcoll "const char *s1" "const char *s2" 46.Ft int 47.Fn strcoll_l "const char *s1" "const char *s2" "locale_t loc" 48.Sh DESCRIPTION 49The 50.Fn strcoll 51function 52lexicographically compares the null-terminated strings 53.Fa s1 54and 55.Fa s2 56according to the current locale collation 57and returns an integer greater than, equal to, or less than 0, 58depending on whether 59.Fa s1 60is greater than, equal to, or less than 61.Fa s2 . 62If information about the current locale collation is not available, 63the value of 64.Fn strcmp s1 s2 65is returned. 66The 67.Fn strcoll_l 68function uses an explicit locale argument rather than the system locale. 69.Sh SEE ALSO 70.Xr setlocale 3 , 71.Xr strcmp 3 , 72.Xr strxfrm 3 , 73.Xr wcscoll 3 74.Sh STANDARDS 75The 76.Fn strcoll 77function conforms to 78.St -isoC . 79The 80.Fn strcoll_l 81function conforms to 82.St -p1003.1-2008 . 83