f51f03a461
Change-Id: I218e70d6a19901107fd037af255ad29692c850d4 Reviewed-on: https://gerrit.libreoffice.org/8461 Reviewed-by: Stephan Bergmann <sbergman@redhat.com> Tested-by: Stephan Bergmann <sbergman@redhat.com>
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_TOOLS_HELPERS_HXX
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#define INCLUDED_TOOLS_HELPERS_HXX
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#include <sal/config.h>
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#include <cassert>
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#include <boost/mpl/or.hpp>
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#include <boost/type_traits/is_floating_point.hpp>
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#include <boost/type_traits/is_signed.hpp>
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#include <boost/type_traits/is_unsigned.hpp>
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#include <boost/utility/enable_if.hpp>
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template<typename T>
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inline
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typename boost::enable_if<
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boost::mpl::or_< boost::is_signed<T>, boost::is_floating_point<T> >, long>
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::type
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MinMax(T nVal, long nMin, long nMax)
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{
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assert(nMin <= nMax);
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return nVal >= nMin
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? (nVal <= nMax ? static_cast<long>(nVal) : nMax) : nMin;
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}
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template<typename T>
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inline typename boost::enable_if<boost::is_unsigned<T>, long>::type MinMax(
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T nVal, long nMin, long nMax)
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{
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assert(nMin <= nMax);
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return nMax < 0
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? nMax
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: ((nMin < 0 || nVal >= static_cast<unsigned long>(nMin))
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? (nVal <= static_cast<unsigned long>(nMax)
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? static_cast<long>(nVal) : nMax)
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: nMin);
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}
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inline long AlignedWidth4Bytes( long nWidthBits )
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{
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return ( ( nWidthBits + 31 ) >> 5 ) << 2;
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}
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inline long FRound( double fVal )
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{
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return fVal > 0.0 ? static_cast<long>( fVal + 0.5 ) : -static_cast<long>( -fVal + 0.5 );
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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