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68 lines
1.1 KiB
68 lines
1.1 KiB
#pragma once
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#include <cstdint>
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#include <functional>
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#ifdef _MSC_VER
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#define EXPORT __declspec(dllexport)
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#define _ALLOW_KEYWORD_MACROS
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#define noexcept throw()
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#else
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#define EXPORT
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#endif
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namespace dev
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{
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namespace evmjit
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{
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using byte = uint8_t;
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using bytes_ref = std::tuple<byte const*, size_t>;
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using code_iterator = byte const*;
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struct h256
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{
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uint64_t words[4];
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};
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inline bool operator==(h256 _h1, h256 _h2)
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{
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return _h1.words[0] == _h2.words[0] &&
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_h1.words[1] == _h2.words[1] &&
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_h1.words[2] == _h2.words[2] &&
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_h1.words[3] == _h2.words[3];
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}
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/// Representation of 256-bit value binary compatible with LLVM i256
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struct i256
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{
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uint64_t a = 0;
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uint64_t b = 0;
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uint64_t c = 0;
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uint64_t d = 0;
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i256() = default;
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i256(h256 _h)
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{
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a = _h.words[0];
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b = _h.words[1];
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c = _h.words[2];
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d = _h.words[3];
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}
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};
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}
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}
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namespace std
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{
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template<> struct hash<dev::evmjit::h256>
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{
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size_t operator()(dev::evmjit::h256 const& _h) const
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{
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/// This implementation expects the argument to be a full 256-bit Keccak hash.
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/// It does nothing more than returning a slice of the input hash.
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return static_cast<size_t>(_h.words[0]);
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};
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};
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}
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