SmallestValueType.h

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 * Copyright (c) 2008-2010 Michael Schulze <mschulze@ivs.cs.uni-magdeburg.de>
 *                    2010 Marcus Foerster <MarcusFoerster1@gmx.de>
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#ifndef _Smallest_Value_Type_h_
#define _Smallest_Value_Type_h_

#include <stdint.h>

#include "config/type_traits/SmallestUnsignedTypeSelector.h"
#include "config/type_traits/SmallestSignedTypeSelector.h"

#include "assert/staticerror.h"

namespace famouso {
    namespace mw {
        namespace attributes {
            namespace detail {

                // General template declaration
                template <typename ValueType, ValueType Value>
                struct SmallestValueType {
                        FAMOUSO_STATIC_ASSERT_ERROR(false, type_not_implemented_yet, (ValueType));
                };

                // Implementation for unsigned types
                template <uint64_t Value>
                struct SmallestValueType<uint64_t, Value> {
                        typedef typename SmallestUnsignedTypeSelector<Value>::type type;
                };

                // All others just delegate to the uint64_t implementation

                template <uint8_t Value>
                struct SmallestValueType<uint8_t, Value> :
                    public SmallestValueType<uint64_t, Value> {};

                template <uint16_t Value>
                struct SmallestValueType<uint16_t, Value> :
                    public SmallestValueType<uint64_t, Value> {};

                template <uint32_t Value>
                struct SmallestValueType<uint32_t, Value> :
                    public SmallestValueType<uint64_t, Value> {};

                template <bool Value>
                struct SmallestValueType<bool, Value> :
                    public SmallestValueType<uint64_t, Value> {};


                // Implementations for signed types

                template <int64_t Value>
                struct SmallestValueType<int64_t, Value> :
                    public SmallestSignedTypeSelector<Value> {};

                template <int8_t Value>
                struct SmallestValueType<int8_t, Value> :
                    public SmallestSignedTypeSelector<Value> {};

                template <int16_t Value>
                struct SmallestValueType<int16_t, Value> :
                    public SmallestSignedTypeSelector<Value> {};

                template <int32_t Value>
                struct SmallestValueType<int32_t, Value> :
                    public SmallestSignedTypeSelector<Value> {};

            } // end namespace detail
        } // end namespace attributes
    } // end namespace mw
} // end namespace famouso

#endif // _Smallest_Value_Type_h_