2004-11-03 13:51:07 +00:00
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.\" 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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.\" ISO/IEC 9899:1999
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.\"
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.TH TOWUPPER 3 1999-07-25 "GNU" "Linux Programmer's Manual"
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.SH NAME
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towupper \- convert a wide character to uppercase
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.SH SYNOPSIS
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.nf
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.B #include <wctype.h>
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.sp
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.BI "wint_t towupper(wint_t " wc );
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.fi
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.SH DESCRIPTION
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2005-10-19 06:54:38 +00:00
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The \fBtowupper\fP() function is the wide-character equivalent of the
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2007-05-12 00:30:29 +00:00
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\fBtoupper\fP(3) function.
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2007-04-12 22:42:49 +00:00
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If \fIwc\fP is a wide character, it is converted to
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uppercase.
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Characters which do not have case are returned unchanged.
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2004-11-03 13:51:07 +00:00
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If \fIwc\fP is WEOF, WEOF is returned.
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.SH "RETURN VALUE"
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2005-10-19 06:54:38 +00:00
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The \fBtowupper\fP() function returns the uppercase equivalent of \fIwc\fP,
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or WEOF if \fIwc\fP is WEOF.
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.SH "CONFORMING TO"
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2006-08-03 13:57:30 +00:00
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C99.
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2004-11-03 13:51:07 +00:00
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.SH "SEE ALSO"
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.BR iswupper (3),
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.BR towctrans (3),
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.BR towlower (3)
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.SH NOTES
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2005-10-19 06:54:38 +00:00
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The behaviour of \fBtowupper\fP() depends on the LC_CTYPE category of the
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2004-11-03 13:51:07 +00:00
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current locale.
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.PP
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This function is not very appropriate for dealing with Unicode characters,
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because Unicode knows about three cases: upper, lower and title case.
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