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//
// This file is part of libGDF.
//
// libGDF is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// libGDF 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libGDF. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright 2010 Martin Billinger
#ifndef __TYPES_H_INCLUDED__
#define __TYPES_H_INCLUDED__
#include "Exceptions.h"
#include <boost/cstdint.hpp>
#include <boost/predef/other/endian.h>
#include <iostream>
namespace gdf
{
typedef boost::int8_t int8;
typedef boost::uint8_t uint8;
typedef boost::int16_t int16;
typedef boost::uint16_t uint16;
typedef boost::int32_t int32;
typedef boost::uint32_t uint32;
typedef boost::int64_t int64;
typedef boost::uint64_t uint64;
typedef float float32;
typedef double float64;
enum type_id
{
INVALID_TYPE = 0,
INT8 = 1,
UINT8 = 2,
INT16 = 3,
UINT16 = 4,
INT32 = 5,
UINT32 = 6,
INT64 = 7,
UINT64 = 8,
FLOAT32 = 16,
FLOAT64 = 17
};
size_t datatype_size( uint32 t );
template<typename T>
T switch_endian( const T &source )
{
T dest;
const char *A = reinterpret_cast<const char*>(&source);
char *B = reinterpret_cast<char*>(&dest);
int a = 0;
int b = sizeof(T)-1;
while( b >= 0 )
{
B[b] = A[a];
}
}
template<typename T>
void writeLittleEndian( std::ostream &out, T item )
{
#if BOOST_ENDIAN_LITTLE_BYTE
out.write( reinterpret_cast<const char*>(&item), sizeof(item) );
#elif BOOST_ENDIAN_BIG_BYTE
const char* p = reinterpret_cast<const char*>(&item) sizeof(item)-1;
for( size_t i=0; i<sizeof(item); i )
out.write( p--, 1 );
#else
#error "Unable to determine system endianness."
#endif
}
template<typename T>
void readLittleEndian( std::istream &in, T &item )
{
#if BOOST_ENDIAN_LITTLE_BYTE
in.read( reinterpret_cast<char*>(&item), sizeof(item) );
#elif BOOST_ENDIAN_BIG_BYTE
char* p = reinterpret_cast<char*>(&item) sizeof(item)-1;
for( size_t i=0; i<sizeof(item); i )
in.read( p--, 1 );
#else
#error "Unable to determine system endianness."
#endif
}
}
#endif
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