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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/.
*/
#ifndef INCLUDED_TOOLS_HELPERS_HXX
#define INCLUDED_TOOLS_HELPERS_HXX
#include <sal/config.h>
#include <cassert>
#include <boost/mpl/or.hpp>
#include <boost/type_traits/is_floating_point.hpp>
#include <boost/type_traits/is_signed.hpp>
#include <boost/type_traits/is_unsigned.hpp>
#include <boost/utility/enable_if.hpp>
template<typename T>
inline
typename boost::enable_if<
boost::mpl::or_< boost::is_signed<T>, boost::is_floating_point<T> >, long>
::type
MinMax(T nVal, long nMin, long nMax)
{
assert(nMin <= nMax);
return nVal >= nMin
? (nVal <= nMax ? static_cast<long>(nVal) : nMax) : nMin;
}
template<typename T>
inline typename boost::enable_if<boost::is_unsigned<T>, long>::type MinMax(
T nVal, long nMin, long nMax)
{
assert(nMin <= nMax);
return nMax < 0
? nMax
: ((nMin < 0 || nVal >= static_cast<unsigned long>(nMin))
? (nVal <= static_cast<unsigned long>(nMax)
? static_cast<long>(nVal) : nMax)
: nMin);
}
inline long AlignedWidth4Bytes( long nWidthBits )
{
return ( ( nWidthBits + 31 ) >> 5 ) << 2;
}
inline long FRound( double fVal )
{
return fVal > 0.0 ? static_cast<long>( fVal + 0.5 ) : -static_cast<long>( -fVal + 0.5 );
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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