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 //
 
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
 
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//
 
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
 
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
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//
 
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// Official repository: https://github.com/boostorg/url
 
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//
 
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#ifndef BOOST_URL_DETAIL_PRINT_HPP
 
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#define BOOST_URL_DETAIL_PRINT_HPP
 
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#include <cstdint>
 
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#include <type_traits>
 
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namespace boost {
 
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namespace urls {
 
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namespace detail {
 
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// std::uint64_t
 
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// 18446744073709551615
 
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//          1          2
 
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template<class T>
 
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struct printed
 
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    : std::false_type
 
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{
 
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};
 
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// 16-bit unsigned
 
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template<>
 
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class printed<std::uint16_t>
 
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    : std::false_type
 
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{
 
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    char n_;
 
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    char buf_[5];
 
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public:
 
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    printed(std::uint16_t n)
 
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    {
 
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        char* it =
 
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            buf_ + sizeof(buf_);
 
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        if(n == 0)
 
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        {
 
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            *--it = '0';
 
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            n_ = 1;
 
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        }
 
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        else
 
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        {
 
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            while(n > 0)
 
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            {
 
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                *--it = '0' + (n % 10);
 
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                n /= 10;
 
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            }
 
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            n_ = static_cast<char>(
 
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                sizeof(buf_) - (
 
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                    it - buf_));
 
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        }
 
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    }
 
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    core::string_view
 
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    string() const noexcept
 
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    {
 
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        return core::string_view(buf_ +
 
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            sizeof(buf_) - n_, n_);
 
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    }
 
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};
 
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template<class T>
 
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printed<T>
 
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make_printed(T t)
 
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{
 
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    return printed<T>(t);
 
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}
 
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} // detail
 
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} // urls
 
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} // boost
 
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#endif