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Date: Mon, 15 Mar 93 10:59:04 JST
From: "Akio    Kido" <kido@vnet.IBM.COM>
To: sc22wg15@dkuug.dk, sc22wg20@dkuug.dk, XoJIG@xopen.co.uk,
        sig-international@osf.org, uojlg-bse@uiap.ui.org,
        efischer@donald.aix.kingston.ibm.com
Subject: MSE 4.5.2.3.mm
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.SK
.H 4 "Wide character case mapping functions"
.H 5 "The \*(Cwtowlower\fP function"
.HU Synopsis
.Cb
	#include <wchar.h>
	wint_t towlower(wint_t wc);
.Ce
.HU Description
.P
The
.Cf towlower
function converts an uppercase letter to the corresponding lowercase letter.
.HU Returns
.P
If the argument is a wide character for which
.Cf iswupper
is true
and there is a corresponding wide character for which
.Cf iswlower
is true,
the
.Cf towlower
function returns the corresponding wide character;
otherwise,
the argument is returned unchanged.
.H 5 "The \*(Cwtowupper\fP function"
.HU Synopsis
.Cb
	#include <wchar.h>
	wint_t towupper(wint_t wc);
.Ce
.HU Description
.P
The
.Cf towupper
function converts a lowercase letter to the corresponding uppercase letter.
.HU Returns
.P
If the argument is a wide character for which
.Cf iswlower
is true
and there is a corresponding wide character
for which
.Cf iswupper
is true,
the
.Cf towupper
function returns the corresponding wide character;
otherwise,
the argument is returned unchanged.