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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/08/20
* @version $Id$
* @file base64.h
* @brief Definition of Base64 class
*
*/
#pragma once
#include <string>
namespace fsa {
/**
* @class Base64
* @brief Base64 encoding and decoding.
*
* Encode and decode arbitrary binary strings to %Base64.
*/
class Base64 {
private:
/** Encoing table */
static const unsigned char _table[];
/** Padding character */
static const unsigned char _padding;
/** Decode one symbol */
static inline int b2n(int b);
/** Encode one symbol */
static inline int n2b(int n);
public:
/**
* @brief Decode a %Base64 encoded string.
*
* @param src Source %Base64 encoded string.
* @param dest Destination to hold the decoded string.
* @return Size of destination string.
*/
static int decode(const std::string &src, std::string &dest);
/**
* @brief Decode a %Base64 encoded string.
*
* @param src Source string.
* @param dest Destination to hold %Base64 encoded string.
* @return Size of destination string.
*/
static int encode(const std::string &src, std::string &dest);
};
} // namespace fsa
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