1.\" $NetBSD: wmemchr.3,v 1.16 2016/07/14 17:17:58 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 and the American National Standards Committee X3, 8.\" on Information Processing Systems. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" from: @(#)strcpy.3 8.1 (Berkeley) 6/4/93 35.\" 36.Dd May 1, 2009 37.Dt WMEMCHR 3 38.Os 39.Sh NAME 40.Nm wmemchr , 41.Nm wmemcmp , 42.Nm wmemcpy , 43.Nm wmemmove , 44.Nm wmemset , 45.Nm wcscat , 46.Nm wcschr , 47.Nm wcscmp , 48.Nm wcscpy , 49.Nm wcscspn , 50.Nm wcslcat , 51.Nm wcslcpy , 52.Nm wcslen , 53.Nm wcsncat , 54.Nm wcsncmp , 55.Nm wcsncpy , 56.Nm wcspbrk , 57.Nm wcsrchr , 58.Nm wcsspn , 59.Nm wcsstr , 60.Nm wcswcs 61.Nd wide-character string manipulation operations 62.Sh LIBRARY 63.Lb libc 64.Sh SYNOPSIS 65.In wchar.h 66.Ft wchar_t * 67.Fn wmemchr "const wchar_t *s" "wchar_t c" "size_t n" 68.Ft int 69.Fn wmemcmp "const wchar_t *s1" "const wchar_t *s2" "size_t n" 70.Ft wchar_t * 71.Fn wmemcpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n" 72.Ft wchar_t * 73.Fn wmemmove "wchar_t *s1" "const wchar_t *s2" "size_t n" 74.Ft wchar_t * 75.Fn wmemset "wchar_t *s" "wchar_t c" "size_t n" 76.Ft wchar_t * 77.Fn wcscat "wchar_t * restrict s1" "const wchar_t * restrict s2" 78.Ft wchar_t * 79.Fn wcschr "const wchar_t *s" "wchar_t c" 80.Ft int 81.Fn wcscmp "const wchar_t *s1" "const wchar_t *s2" 82.Ft wchar_t * 83.Fn wcscpy "wchar_t * restrict s1" "const wchar_t * restrict s2" 84.Ft size_t 85.Fn wcscspn "const wchar_t *s1" "const wchar_t *s2" 86.Ft size_t 87.Fn wcslcat "wchar_t *s1" "const wchar_t *s2" "size_t n" 88.Ft size_t 89.Fn wcslcpy "wchar_t *s1" "const wchar_t *s2" "size_t n" 90.Ft size_t 91.Fn wcslen "const wchar_t *s" 92.Ft wchar_t * 93.Fn wcsncat "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n" 94.Ft int 95.Fn wcsncmp "const wchar_t *s1" "const wchar_t * s2" "size_t n" 96.Ft wchar_t * 97.Fn wcsncpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n" 98.Ft wchar_t * 99.Fn wcspbrk "const wchar_t *s1" "const wchar_t *s2" 100.Ft wchar_t * 101.Fn wcsrchr "const wchar_t *s" "wchar_t c" 102.Ft size_t 103.Fn wcsspn "const wchar_t *s1" "const wchar_t *s2" 104.Ft wchar_t * 105.Fn wcsstr "const wchar_t *s1" "const wchar_t *s2" 106.Ft wchar_t * 107.Fn wcswcs "const wchar_t *s1" "const wchar_t *s2" 108.Sh DESCRIPTION 109These functions implement string manipulation operations over wide-character 110strings. 111For a detailed description, refer to the documents for the respective 112single-byte counterpart, such as 113.Xr memchr 3 . 114The 115.Fn wcswcs 116function is not a part of 117.St -isoC 118and 119.St -isoC-amd1 , 120the 121.Fn wcsstr 122function is strongly recommended to be used. 123.Sh SEE ALSO 124.Xr memchr 3 , 125.Xr memcmp 3 , 126.Xr memcpy 3 , 127.Xr memmove 3 , 128.Xr memset 3 , 129.Xr stpcpy 3 , 130.Xr stpncpy 3 , 131.Xr strcasecmp 3 , 132.Xr strcat 3 , 133.Xr strchr 3 , 134.Xr strcmp 3 , 135.Xr strcpy 3 , 136.Xr strcspn 3 , 137.Xr strdup 3 , 138.Xr strlcat 3 , 139.Xr strlcpy 3 , 140.Xr strlen 3 , 141.Xr strncat 3 , 142.Xr strncmp 3 , 143.Xr strncpy 3 , 144.Xr strnlen 3 , 145.Xr strpbrk 3 , 146.Xr strrchr 3 , 147.Xr strspn 3 , 148.Xr strstr 3 149.Sh STANDARDS 150These functions conform to 151.St -isoC-99 152and were first introduced in 153.St -isoC-amd1 , 154with the exception of 155.Fn wcslcat 156and 157.Fn wcslcpy , 158which are extensions. 159The 160.Fn wcswcs 161function conforms to 162.St -xpg4.2 . 163