mirror of https://github.com/mkerrisk/man-pages
56 lines
1.6 KiB
Groff
56 lines
1.6 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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.\"
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" References consulted:
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.\" GNU glibc-2 source code and manual
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.\" Dinkumware C library reference http://www.dinkumware.com/
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.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
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.\"
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.TH WCSCASECMP 3 2007-07-26 "GNU" "Linux Programmer's Manual"
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.SH NAME
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wcscasecmp \- compare two wide-character strings, ignoring case
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.SH SYNOPSIS
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.nf
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.B #define _GNU_SOURCE
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.B #include <wchar.h>
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.sp
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.BI "int wcscasecmp(const wchar_t *" s1 ", const wchar_t *" s2 );
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.fi
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.SH DESCRIPTION
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The
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.BR wcscasecmp ()
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function is the wide-character equivalent of the
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.BR strcasecmp (3)
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function.
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It compares the wide-character string pointed to
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by \fIs1\fP and the wide-character string pointed to by \fIs2\fP, ignoring
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case differences
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.RB ( towupper (3),
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.BR towlower (3)).
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.SH "RETURN VALUE"
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The
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.BR wcscasecmp ()
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function returns zero if the wide-character strings at
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\fIs1\fP and \fIs2\fP are equal except for case distinctions.
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It returns a
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positive integer if \fIs1\fP is greater than \fIs2\fP, ignoring case.
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It
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returns a negative integer if \fIs1\fP is smaller
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than \fIs2\fP, ignoring case.
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.SH "CONFORMING TO"
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This function is a GNU extension.
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.SH NOTES
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The behavior of
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.BR wcscasecmp ()
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depends on the
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.B LC_CTYPE
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category of the
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current locale.
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.SH "SEE ALSO"
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.BR strcasecmp (3),
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.BR wcscmp (3)
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