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.\" from: @(#)strxfrm.3 8.1 (Berkeley) 6/4/93 33.\" $NetBSD: strxfrm.3,v 1.12 2019/03/18 02:15:21 mrg Exp $ 34.\" 35.Dd March 6, 2019 36.Dt STRXFRM 3 37.Os 38.Sh NAME 39.Nm strxfrm 40.Nd transform a string under locale 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In string.h 45.Ft size_t 46.Fn strxfrm "char * restrict dst" "const char * restrict src" "size_t n" 47.Sh DESCRIPTION 48The 49.Fn strxfrm 50function does something horrible. 51The idea is to 52.Dq un-localize 53a string: the function transforms 54.Ar src , 55storing the result in 56.Ar dst , 57such that 58.Xr strcmp 3 59on transformed strings returns what 60.Xr strcoll 3 61on the original untransformed strings would return. 62.Sh SEE ALSO 63.Xr bcmp 3 , 64.Xr memcmp 3 , 65.\" .Xr setlocale 3 , 66.Xr strcasecmp 3 , 67.Xr strcmp 3 , 68.Xr strcoll 3 69.Sh STANDARDS 70The 71.Fn strxfrm 72function 73conforms to 74.St -ansiC . 75.Sh BUGS 76Since locales are not fully implemented on 77.Nx , 78.Fn strxfrm 79just returns a copy of the original string. 80