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56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
#pragma once
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#include <cinttypes>
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static inline uint16_t __local_bswap16(uint16_t x) {
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return ((x << 8) & 0xff00) | ((x >> 8) & 0x00ff);
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}
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static inline uint32_t __local_bswap32(uint32_t x) {
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return ((x << 24) & 0xff000000 ) |
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((x << 8) & 0x00ff0000 ) |
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((x >> 8) & 0x0000ff00 ) |
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((x >> 24) & 0x000000ff );
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}
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static inline uint64_t __local_bswap64(uint64_t x)
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{
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return (uint64_t)__local_bswap32(x>>32) |
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((uint64_t)__local_bswap32(x&0xFFFFFFFF) << 32);
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}
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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static inline uint64_t be_dword(uint64_t a) { return __local_bswap64(a); }
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static inline uint32_t be_word(uint32_t a) { return __local_bswap32(a); }
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static inline uint16_t be_hword(uint16_t a) { return __local_bswap16(a); }
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static inline uint64_t le_dword(uint64_t a) { return a; }
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static inline uint32_t le_word(uint32_t a) { return a; }
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static inline uint16_t le_hword(uint16_t a) { return a; }
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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static inline uint64_t be_dword(uint64_t a) { return a; }
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static inline uint32_t be_word(uint32_t a) { return a; }
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static inline uint16_t be_hword(uint16_t a) { return a; }
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static inline uint64_t le_dword(uint64_t a) { return __local_bswap64(a); }
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static inline uint32_t le_word(uint32_t a) { return __local_bswap32(a); }
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static inline uint16_t le_hword(uint16_t a) { return __local_bswap16(a); }
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#else
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#error "What's the endianness of the platform you're targeting?"
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#endif
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template <class T, T (*F)(T)>
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class ISerialiseablePrimative {
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public:
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inline T get() const { return F(mVar);}
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inline void set(T var) { mVar = F(var); }
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inline T operator=(T var) { set(var); return get();}
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inline T operator*() const { return get(); }
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private:
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T mVar;
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};
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typedef ISerialiseablePrimative<uint16_t, le_hword> le_uint16_t;
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typedef ISerialiseablePrimative<uint16_t, be_hword> be_uint16_t;
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typedef ISerialiseablePrimative<uint32_t, le_word> le_uint32_t;
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typedef ISerialiseablePrimative<uint32_t, be_word> be_uint32_t;
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typedef ISerialiseablePrimative<uint64_t, le_dword> le_uint64_t;
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typedef ISerialiseablePrimative<uint64_t, be_dword> be_uint64_t; |