1.\" Copyright (c) 1990, 1991 The Regents of the University of California. 2.\" 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.\" $OpenBSD: strxfrm.3,v 1.9 2011/07/25 00:38:53 schwarze Exp $ 33.\" 34.Dd $Mdocdate: July 25 2011 $ 35.Dt STRXFRM 3 36.Os 37.Sh NAME 38.Nm strxfrm 39.Nd transform a string under locale 40.Sh SYNOPSIS 41.Fd #include <string.h> 42.Ft size_t 43.Fn strxfrm "char *dst" "const char *src" "size_t n" 44.Sh DESCRIPTION 45The idea of 46.Fn strxfrm 47is to 48.Dq un-localize 49a string: the function transforms 50.Ar src , 51storing the result in 52.Ar dst , 53such that 54.Xr strcmp 3 55on transformed strings returns what 56.Xr strcoll 3 57on the original untransformed strings would return. 58.Sh SEE ALSO 59.Xr bcmp 3 , 60.Xr memcmp 3 , 61.Xr setlocale 3 , 62.Xr strcasecmp 3 , 63.Xr strcmp 3 , 64.Xr strcoll 3 65.Sh STANDARDS 66The 67.Fn strxfrm 68function conforms to 69.St -ansiC . 70.Sh HISTORY 71The 72.Fn strxfrm 73function first appeared in 74.Bx 4.3 Reno . 75.Sh BUGS 76Since locales are not fully implemented on 77.Ox , 78.Fn strxfrm 79just returns a copy of the original string. 80