mirror of https://github.com/bsnes-emu/bsnes.git
24 lines
659 B
C++
24 lines
659 B
C++
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#pragma once
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#include <nall/arithmetic.hpp>
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namespace nall { namespace Decode {
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template<typename T> inline auto Base57(const string& value) -> T {
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T result = 0;
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for(auto n : rrange(value.size())) {
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auto byte = value[n];
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if(byte >= '2' && byte <= '9') byte -= '2' - 0;
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else if(byte >= 'A' && byte <= 'H') byte -= 'A' - 8;
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else if(byte >= 'J' && byte <= 'N') byte -= 'J' - 16;
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else if(byte >= 'P' && byte <= 'Z') byte -= 'P' - 21;
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else if(byte >= 'a' && byte <= 'k') byte -= 'a' - 32;
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else if(byte >= 'm' && byte <= 'z') byte -= 'm' - 43;
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else return 0;
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result = result * 57 + byte;
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}
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return result;
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}
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}}
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