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59 lines
1.8 KiB
59 lines
1.8 KiB
/*
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base64.cpp and base64.h
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Copyright (C) 2004-2008 René Nyffenegger
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This source code is provided 'as-is', without any express or implied
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warranty. In no event will the author be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this source code must not be misrepresented; you must not
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claim that you wrote the original source code. If you use this source code
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original source code.
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3. This notice may not be removed or altered from any source distribution.
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René Nyffenegger rene.nyffenegger@adp-gmbh.ch
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*/
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/// Adapted from code found on http://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
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/// Originally by René Nyffenegger.
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/// DEVified by Gav Wood.
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#pragma once
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#include <string>
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#include "Common.h"
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#include "FixedHash.h"
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namespace dev
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{
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std::string toBase64(bytesConstRef _in);
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bytes fromBase64(std::string const& _in);
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template <size_t N> inline std::string toBase36(FixedHash<N> const& _h)
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{
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static char const* c_alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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typename FixedHash<N>::Arith a = _h;
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std::string ret;
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for (; a > 0; a /= 36)
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ret = c_alphabet[(unsigned)a % 36] + ret;
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return ret;
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}
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template <size_t N> inline FixedHash<N> fromBase36(std::string const& _h)
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{
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typename FixedHash<N>::Arith ret = 0;
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for (char c: _h)
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ret = ret * 36 + (c < 'A' ? c - '0' : (c - 'A' + 10));
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return ret;
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}
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}
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