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.Dd June 4, 1993 33.Dt STRCOLL 3 34.Os 35.Sh NAME 36.Nm strcoll 37.Nd compare strings according to current collation 38.Sh LIBRARY 39.Lb libc 40.Sh SYNOPSIS 41.In string.h 42.Ft int 43.Fn strcoll "const char *s1" "const char *s2" 44.Ft int 45.Fn strcoll_l "const char *s1" "const char *s2" "locale_t loc" 46.Sh DESCRIPTION 47The 48.Fn strcoll 49function 50lexicographically compares the null-terminated strings 51.Fa s1 52and 53.Fa s2 54according to the current locale collation 55and returns an integer greater than, equal to, or less than 0, 56depending on whether 57.Fa s1 58is greater than, equal to, or less than 59.Fa s2 . 60If information about the current locale collation is not available, 61the value of 62.Fn strcmp s1 s2 63is returned. 64The 65.Fn strcoll_l 66function uses an explicit locale argument rather than the system locale. 67.Sh SEE ALSO 68.Xr setlocale 3 , 69.Xr strcmp 3 , 70.Xr strxfrm 3 , 71.Xr wcscoll 3 72.Sh STANDARDS 73The 74.Fn strcoll 75function conforms to 76.St -isoC . 77The 78.Fn strcoll_l 79function conforms to 80.St -p1003.1-2008 . 81