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/*************************************************************************
** types.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2014 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef DVISVGM_TYPES_H
#define DVISVGM_TYPES_H
namespace internal {
template<unsigned BYTES>
class ERROR_inttype_not_available
{
ERROR_inttype_not_available();
};
template<bool FIRST, typename A, typename B>
struct select
{
typedef A T;
};
template<typename A, typename B>
struct select<false, A, B>
{
typedef B T;
};
}
// Retrieves a signed integer type with sizeof(T) == BYTES
template<unsigned BYTES, bool SIGNED>
struct int_t
{
typedef typename internal::select<sizeof(signed char) == BYTES, signed char,
typename internal::select<sizeof(signed short) == BYTES, signed short,
typename internal::select<sizeof(signed int) == BYTES, signed int,
typename internal::select<sizeof(signed long) == BYTES, signed long,
typename internal::select<sizeof(signed long long) == BYTES, signed long long,
internal::ERROR_inttype_not_available<BYTES> >::T>::T>::T>::T>::T T;
};
// Retrieves an unsigned integer type with sizeof(T) == BYTES
template<unsigned BYTES>
struct int_t<BYTES, false>
{
typedef typename internal::select<sizeof(unsigned char) == BYTES, unsigned char,
typename internal::select<sizeof(unsigned short) == BYTES, unsigned short,
typename internal::select<sizeof(unsigned int) == BYTES, unsigned int,
typename internal::select<sizeof(unsigned long) == BYTES, unsigned long,
typename internal::select<sizeof(unsigned long long) == BYTES, unsigned long long,
internal::ERROR_inttype_not_available<BYTES> >::T>::T>::T>::T>::T T;
};
// Machine independent definition of sized integer types
typedef int_t<1, true>::T Int8;
typedef int_t<2, true>::T Int16;
typedef int_t<4, true>::T Int32;
typedef int_t<8, true>::T Int64;
typedef int_t<1, false>::T UInt8;
typedef int_t<2, false>::T UInt16;
typedef int_t<4, false>::T UInt32;
typedef int_t<8, false>::T UInt64;
typedef Int32 FixWord;
typedef UInt32 ScaledInt;
#endif
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