mirror of https://github.com/bsnes-emu/bsnes.git
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#pragma once
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#include <nall/arithmetic.hpp>
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#include <nall/range.hpp>
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#include <nall/string.hpp>
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//cannot use constructor inheritance due to needing to call virtual reset();
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//instead, define a macro to reduce boilerplate code in every Hash subclass
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#define nallHash(Name) \
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Name() { reset(); } \
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Name(const void* data, uint64_t size) : Name() { input(data, size); } \
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Name(const vector<uint8_t>& data) : Name() { input(data); } \
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Name(const string& data) : Name() { input(data); } \
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using Hash::input; \
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namespace nall::Hash {
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struct Hash {
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virtual auto reset() -> void = 0;
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virtual auto input(uint8_t data) -> void = 0;
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virtual auto output() const -> vector<uint8_t> = 0;
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auto input(array_view<uint8_t> data) -> void {
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for(auto byte : data) input(byte);
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}
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auto input(const void* data, uint64_t size) -> void {
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auto p = (const uint8_t*)data;
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while(size--) input(*p++);
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}
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auto input(const vector<uint8_t>& data) -> void {
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for(auto byte : data) input(byte);
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}
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auto input(const string& data) -> void {
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for(auto byte : data) input(byte);
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}
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auto digest() const -> string {
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string result;
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for(auto n : output()) result.append(hex(n, 2L));
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return result;
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}
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};
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}
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