mirror of https://github.com/mkerrisk/man-pages
80 lines
2.0 KiB
Groff
80 lines
2.0 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
|
|
.\"
|
|
.\" This is free documentation; you can redistribute it and/or
|
|
.\" modify it under the terms of the GNU General Public License as
|
|
.\" published by the Free Software Foundation; either version 2 of
|
|
.\" the License, or (at your option) any later version.
|
|
.\"
|
|
.\" References consulted:
|
|
.\" GNU glibc-2 source code and manual
|
|
.\" Dinkumware C library reference http://www.dinkumware.com/
|
|
.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
|
|
.\"
|
|
.TH WCSCASECMP 3 2010-09-15 "GNU" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
wcscasecmp \- compare two wide-character strings, ignoring case
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <wchar.h>
|
|
.sp
|
|
.BI "int wcscasecmp(const wchar_t *" s1 ", const wchar_t *" s2 );
|
|
.fi
|
|
.sp
|
|
.in -4n
|
|
Feature Test Macro Requirements for glibc (see
|
|
.BR feature_test_macros (7)):
|
|
.in
|
|
.sp
|
|
.BR wcscasecmp ():
|
|
.PD 0
|
|
.ad l
|
|
.RS 4
|
|
.TP 4
|
|
Since glibc 2.10:
|
|
_XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
|
|
.TP
|
|
Before glibc 2.10:
|
|
_GNU_SOURCE
|
|
.RE
|
|
.ad
|
|
.PD
|
|
.SH DESCRIPTION
|
|
The
|
|
.BR wcscasecmp ()
|
|
function is the wide-character equivalent of the
|
|
.BR strcasecmp (3)
|
|
function.
|
|
It compares the wide-character string pointed to
|
|
by \fIs1\fP and the wide-character string pointed to by \fIs2\fP, ignoring
|
|
case differences
|
|
.RB ( towupper (3),
|
|
.BR towlower (3)).
|
|
.SH "RETURN VALUE"
|
|
The
|
|
.BR wcscasecmp ()
|
|
function returns zero if the wide-character strings at
|
|
\fIs1\fP and \fIs2\fP are equal except for case distinctions.
|
|
It returns a
|
|
positive integer if \fIs1\fP is greater than \fIs2\fP, ignoring case.
|
|
It
|
|
returns a negative integer if \fIs1\fP is smaller
|
|
than \fIs2\fP, ignoring case.
|
|
.SH VERSIONS
|
|
The
|
|
.BR wcscasecmp ()
|
|
function is provided in glibc since version 2.1.
|
|
.SH "CONFORMING TO"
|
|
POSIX.1-2008.
|
|
This function is not specified in POSIX.1-2001,
|
|
and is not widely available on other systems.
|
|
.SH NOTES
|
|
The behavior of
|
|
.BR wcscasecmp ()
|
|
depends on the
|
|
.B LC_CTYPE
|
|
category of the
|
|
current locale.
|
|
.SH "SEE ALSO"
|
|
.BR strcasecmp (3),
|
|
.BR wcscmp (3)
|