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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <svl/sharedstring.hxx>
namespace svl {
const OUString SharedString::EMPTY_STRING;
const SharedString & SharedString::getEmptyString()
{
// ref-counting traffic associated with SharedString temporaries can be significant,
// so use a singleton here, so we can return a const& from getEmptyString.
// unicode string array for empty string is globally shared in OUString.
// Let's take advantage of that.
static const SharedString EMPTY_SHARED_STRING(EMPTY_STRING.pData, EMPTY_STRING.pData);
return EMPTY_SHARED_STRING;
}
SharedString& SharedString::operator= ( const SharedString& r )
{
if(this == &r)
return *this;
if (mpData)
rtl_uString_release(mpData);
if (mpDataIgnoreCase)
rtl_uString_release(mpDataIgnoreCase);
mpData = r.mpData;
mpDataIgnoreCase = r.mpDataIgnoreCase;
if (mpData)
rtl_uString_acquire(mpData);
if (mpDataIgnoreCase)
rtl_uString_acquire(mpDataIgnoreCase);
return *this;
}
bool SharedString::operator== ( const SharedString& r ) const
{
// Compare only the original (not case-folded) string.
if (mpData == r.mpData)
return true;
if (mpData)
{
if (!r.mpData)
return false;
if (mpData->length != r.mpData->length)
return false;
return rtl_ustr_reverseCompare_WithLength(mpData->buffer, mpData->length, r.mpData->buffer, r.mpData->length) == 0;
}
return !r.mpData;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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