include/boost/url/detail/print.hpp

100.0% Lines (19/19) 100.0% Functions (3/3)

Line	Hits	Source Code
1		//
2		// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3		//
4		// Distributed under the Boost Software License, Version 1.0. (See accompanying
5		// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6		//
7		// Official repository: https://github.com/boostorg/url
8		//
9
10		#ifndef BOOST_URL_DETAIL_PRINT_HPP
11		#define BOOST_URL_DETAIL_PRINT_HPP
12
13		#include <boost/core/detail/string_view.hpp>
14		#include <cstdint>
15		#include <type_traits>
16
17		namespace boost {
18		namespace urls {
19		namespace detail {
20
21		// std::uint64_t
22		// 18446744073709551615
23		// 1 2
24		template<class T>
25		struct printed
26		: std::false_type
27		{
28		};
29
30		// 16-bit unsigned
31		template<>
32		class printed<std::uint16_t>
33		: std::false_type
34		{
35		char n_;
36		char buf_[5];
37
38		public:
39	215	printed(std::uint16_t n)
40	215	{
41	215	char* it =
42	215	buf_ + sizeof(buf_);
43	215	if(n == 0)
44		{
45	16	*--it = '0';
46	16	n_ = 1;
47		}
48		else
49		{
50	1145	while(n > 0)
51		{
52	946	*--it = '0' + (n % 10);
53	946	n /= 10;
54		}
55	199	n_ = static_cast<char>(
56	199	sizeof(buf_) - (
57	199	it - buf_));
58		}
59	215	}
60
61		core::string_view
62	645	string() const noexcept
63		{
64	1290	return core::string_view(buf_ +
65	645	sizeof(buf_) - n_, n_);
66		}
67		};
68
69		template<class T>
70		printed<T>
71	215	make_printed(T t)
72		{
73	215	return printed<T>(t);
74		}
75
76		} // detail
77		} // urls
78		} // boost
79
80		#endif
81