mirror of
https://github.com/fumiama/simple-crypto.git
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50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
#ifndef _SCRYPTO_BINARY_H
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#define _SCRYPTO_BINARY_H
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// https://github.com/TheSnowfield
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#include <stdint.h>
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inline uint32_t _swap_16(uint16_t value) {
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#ifdef _MSC_VER
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return _byteswap_ushort(value);
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#elif __GNUC__
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return __builtin_bswap16(value);
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#else
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return ((value & 0xff00) >> 8) |
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((value & 0x00ff) << 8);
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#endif
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}
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inline uint32_t _swap_32(uint32_t value) {
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#ifdef _MSC_VER
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return _byteswap_ulong(value);
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#elif __GNUC__
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return __builtin_bswap32(value);
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#else
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return ((value & 0xff000000) >> 24) |
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((value & 0x00ff0000) >> 8) |
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((value & 0x0000ff00) << 8) |
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((value & 0x000000ff) << 24);
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#endif
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}
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inline uint64_t _swap_64(uint64_t value) {
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#ifdef _MSC_VER
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return _byteswap_uint64(value);
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#elif __GNUC__
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return __builtin_bswap64(value);
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#else
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return ((value & 0xff00000000000000) >> 56) |
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((value & 0x00ff000000000000) >> 40) |
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((value & 0x0000ff0000000000) >> 24) |
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((value & 0x000000ff00000000) >> 8) |
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((value & 0x00000000ff000000) << 8) |
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((value & 0x0000000000ff0000) << 24) |
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((value & 0x000000000000ff00) << 40) |
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((value & 0x00000000000000ff) << 56);
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#endif
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}
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#endif /* _SCRYPTO_BINARY_H */
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