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- #ifndef TYPES_H
- #define TYPES_H
- namespace NumberSize {
- template<bool condition, typename IfTrue, typename IfFalse>
- struct Conditional {
- typedef IfTrue dummy;
- };
- template<typename IfTrue, typename IfFalse>
- struct Conditional<false, IfTrue, IfFalse> {
- typedef IfFalse dummy;
- };
- template<int N, typename A, typename B>
- using SizeCheck = Conditional<sizeof (A) == N, A, B>;
- template<int N>
- using Signed = SizeCheck<N, long long,
- typename SizeCheck<N, long,
- typename SizeCheck<N, int,
- typename SizeCheck<N, short, char>::dummy>::dummy>::dummy>;
- template<int N>
- using Unsigned = SizeCheck<N, unsigned long long,
- typename SizeCheck<N, unsigned long,
- typename SizeCheck<N, unsigned int,
- typename SizeCheck<N, unsigned short, unsigned char>::dummy>::dummy>::dummy>;
- }
- typedef NumberSize::Signed<8>::dummy int64;
- typedef NumberSize::Signed<4>::dummy int32;
- typedef NumberSize::Signed<2>::dummy int16;
- typedef NumberSize::Signed<1>::dummy int8;
- typedef NumberSize::Unsigned<8>::dummy uint64;
- typedef NumberSize::Unsigned<4>::dummy uint32;
- typedef NumberSize::Unsigned<2>::dummy uint16;
- typedef NumberSize::Unsigned<1>::dummy uint8;
- #endif
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