1 '\" te 2 .\" Copyright 2014 Garrett D'Amore <garrett@damore.org> 3 .\" Copyright (c) 1992, X/Open Company Limited All Rights Reserved Portions Copyright (c) 2002, Sun Microsystems, Inc. All Rights Reserved 4 .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at 5 .\" http://www.opengroup.org/bookstore/. 6 .\" The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in the Sun OS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html. 7 .\" This notice shall appear on any product containing this material. 8 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. 9 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License. 10 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] 11 .TH WCSCOLL 3C "Jun 25, 2014" 12 .SH NAME 13 wcscoll, wcscoll_l wscoll \- wide character string comparison using collating information 14 .SH SYNOPSIS 15 .LP 16 .nf 17 #include <wchar.h> 18 19 \fBint\fR \fBwcscoll\fR(\fBconst wchar_t *\fR\fIws1\fR, \fBconst wchar_t *\fR\fIws2\fR); 20 .fi 21 .LP 22 .nf 23 \fBint\fR \fBwcscoll_l\fR(\fBconst wchar_t *\fR\fIws1\fR, \fBconst wchar_t *\fR\fIws2\fR, \fBlocale_t\fR \fIloc\fR); 24 .fi 25 .LP 26 .nf 27 \fBint\fR \fBwscoll\fR(\fBconst wchar_t *\fR\fIws1\fR, \fBconst wchar_t *\fR\fIws2\fR); 28 .fi 29 .SH DESCRIPTION 30 .LP 31 The \fBwcscoll()\fR, \fBwcscoll_l()\fR, and \fBwscoll()\fR functions compare 32 the wide character 33 string pointed to by \fIws1\fR to the wide character string pointed to by 34 \fIws2\fR, both interpreted as appropriate to the \fBLC_COLLATE\fR locale 35 category. 36 .LP 37 These functions do not change the setting of \fBerrno\fR if successful. 38 .LP 39 An application wanting to check for error situations should set \fBerrno\fR to 40 0 before calling these functions. If \fBerrno\fR is non-zero 41 on return, an error has occurred. 42 .LP 43 The function \fBwcsoll_l()\fR behaves identically to \fBwcsoll\fR(), except 44 instead of operating in the current locale, it operates in the locale 45 specified by \fIloc\fR. 46 .SH RETURN VALUES 47 .LP 48 Upon successful completion, these functions return an 49 integer greater than, equal to, or less than 0, depending upon whether the wide 50 character string pointed to by \fIws1\fR is greater than, equal to, or less 51 than the wide character string pointed to by \fIws2\fR, when both are 52 interpreted as appropriate to the the current locale, or the locale 53 specified by \fIloc\fR. On error, 54 they set \fBerrno\fR, but no return value is reserved to indicate an error. 55 .SH ERRORS 56 .LP 57 The \fBwcscoll()\fR, \fBwcscoll_l()\fR and \fBwscoll()\fR functions may fail if: 58 .sp 59 .ne 2 60 .na 61 \fB\fBEINVAL\fR\fR 62 .ad 63 .RS 10n 64 The \fIws1\fR or \fIws2\fR arguments contain wide character codes outside the 65 domain of the collating sequence. 66 .RE 67 .SH USAGE 68 .sp 69 .LP 70 The \fBwcsxfrm\fR(3C) and \fBwcscmp\fR(3C) functions should be used for sorting 71 large lists, or when performing many comparisions on the same strings. 72 .SH ATTRIBUTES 73 .LP 74 See \fBattributes\fR(5) for descriptions of the following attributes: 75 .TS 76 box; 77 c | c 78 l | l . 79 ATTRIBUTE TYPE ATTRIBUTE VALUE 80 _ 81 CSI Enabled 82 _ 83 Interface Stability See below. 84 _ 85 MT-Level MT-Safe 86 .TE 87 88 .LP 89 The \fBwcscoll()\fR and \fBwcscoll_l()\fR functions are Standard. 90 The \fBwscoll()\fR function is Committed. 91 .SH SEE ALSO 92 .LP 93 \fBnewlocale\fR(3C), \fBsetlocale\fR(3C), \fBuselocale\fR(3C), 94 \fBwcscmp\fR(3C), \fBwcsxfrm\fR(3C), \fBattributes\fR(5), 95 \fBstandards\fR(5)