base64_coder.hpp

#pragma once
 
#include "fly/coders/coder.hpp"
 
#include <array>
#include <istream>
#include <ostream>
 
namespace fly::coders {
 
class Base64Coder : public Encoder, public Decoder
{
protected:
    bool encode_internal(std::istream &decoded, std::ostream &encoded) override;
 
    bool decode_internal(std::istream &encoded, std::ostream &decoded) override;
 
private:
    static constexpr const std::size_t s_decoded_chunk_size = 3;
    static constexpr const std::size_t s_encoded_chunk_size = 4;
 
    std::array<std::ios::char_type, (64 * s_decoded_chunk_size) << 10> m_decoded;
    std::array<std::ios::char_type, (64 * s_encoded_chunk_size) << 10> m_encoded;
};
 
} // namespace fly::coders