libs/url/include/boost/url/grammar/impl/unsigned_rule.hpp

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    libs/url/include/boost/url/grammar/impl/unsigned_rule.hpp
    
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        //
      
        // Copyright (c) 2022 Alan de Freitas (alandefreitas at gmail dot com)
      
        //
      
        // Distributed under the Boost Software License, Version 1.0. (See accompanying
      
        // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
      
        //
      
        // Official repository: https://github.com/boostorg/url
      
        //
      
        #ifndef BOOST_URL_GRAMMAR_IMPL_UNSIGNED_RULE_HPP
      
        #define BOOST_URL_GRAMMAR_IMPL_UNSIGNED_RULE_HPP
      
        #include <boost/url/grammar/error.hpp>
      
        #include <boost/url/grammar/digit_chars.hpp>
      
        #include <algorithm> // VFALCO grr..
      
        namespace boost {
      
        namespace urls {
      
        namespace grammar {
      
        template<class U>
      
        auto
      
        1693
        unsigned_rule<U>::
      
        parse(
      
            char const*& it,
      
            char const* end
      
                ) const noexcept ->
      
            system::result<value_type>
      
        {
      
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        1693
            if(it == end)
      
            {
      
                // end
      
        371
                BOOST_URL_RETURN_EC(
      
                    error::mismatch);
      
            }
      
          3/4boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        1322
            if(*it == '0')
      
            {
      
        49
                ++it;
      
          3/8boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        73
                if( it == end ||
      
          1/4boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        24
                    ! digit_chars(*it))
      
                {
      
        43
                    return U(0);
      
                }
      
                // bad leading zero
      
        6
                BOOST_URL_RETURN_EC(
      
                    error::invalid);
      
            }
      
          4/4boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        1273
            if(! digit_chars(*it))
      
            {
      
                // expected digit
      
        871
                BOOST_URL_RETURN_EC(
      
                    error::mismatch);
      
            }
      
            static constexpr U Digits10 =
      
                std::numeric_limits<
      
                    U>::digits10;
      
            static constexpr U ten = 10;
      
            char const* safe_end;
      
        402
            if(static_cast<std::size_t>(
      
          3/4boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        402
                    end - it) >= Digits10)
      
        186
                safe_end = it + Digits10;
      
            else
      
        216
                safe_end = end;
      
        402
            U u = *it - '0';
      
        402
            ++it;
      
          10/12boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        1630
            while(it != safe_end &&
      
        700
                digit_chars(*it))
      
            {
      
        528
                char const dig = *it - '0';
      
        528
                u = u * ten + dig;
      
        528
                ++it;
      
            }
      
          10/12boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        653
            if( it != end &&
      
        251
                digit_chars(*it))
      
            {
      
                static constexpr U Max = (
      
                    std::numeric_limits<
      
                        U>::max)();
      
                static constexpr
      
                    auto div = (Max / ten);
      
                static constexpr
      
                    char rem = (Max % ten);
      
        44
                char const dig = *it - '0';
      
          2/4boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        44
                if( u > div || (
      
          4/8boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        31
                    u == div && dig > rem))
      
                {
      
                    // integer overflow
      
        23
                    BOOST_URL_RETURN_EC(
      
                        error::invalid);
      
                }
      
        21
                u = u * ten + dig;
      
        21
                ++it;
      
          6/12boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const*&, char const*) const:
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boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const*&, char const*) const:
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        28
                if( it < end &&
      
        7
                    digit_chars(*it))
      
                {
      
                    // integer overflow
      
        6
                    BOOST_URL_RETURN_EC(
      
                        error::invalid);
      
                }
      
            }
      
        373
            return u;
      
        }
      
        } // grammar
      
        } // urls
      
        } // boost
      
        #endif

Line	Branch	Exec	Source
1			//
2			// Copyright (c) 2022 Alan de Freitas (alandefreitas at gmail dot 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_GRAMMAR_IMPL_UNSIGNED_RULE_HPP
11			#define BOOST_URL_GRAMMAR_IMPL_UNSIGNED_RULE_HPP
12
13			#include <boost/url/grammar/error.hpp>
14			#include <boost/url/grammar/digit_chars.hpp>
15			#include <algorithm> // VFALCO grr..
16
17			namespace boost {
18			namespace urls {
19			namespace grammar {
20
21			template<class U>
22			auto
23		1693	unsigned_rule<U>::
24			parse(
25			char const*& it,
26			char const* end
27			) const noexcept ->
28			system::result<value_type>
29			{
30	3/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 0 taken 370 times. ✓ Branch 1 taken 989 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✓ Branch 1 taken 305 times.	1693	if(it == end)
31			{
32			// end
33		371	BOOST_URL_RETURN_EC(
34			error::mismatch);
35			}
36	3/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 0 taken 40 times. ✓ Branch 1 taken 949 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✓ Branch 1 taken 305 times.	1322	if(*it == '0')
37			{
38		49	++it;
39	3/8 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 0 taken 18 times. ✓ Branch 1 taken 22 times. ✓ Branch 2 taken 40 times. ✗ Branch 3 not taken. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✗ Branch 3 not taken.	73	if( it == end \|\|
40	1/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 1 taken 18 times. ✗ Branch 2 not taken. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✗ Branch 1 not taken. ✗ Branch 2 not taken.	24	! digit_chars(*it))
41			{
42		43	return U(0);
43			}
44			// bad leading zero
45		6	BOOST_URL_RETURN_EC(
46			error::invalid);
47			}
48	4/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 1 taken 837 times. ✓ Branch 2 taken 112 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 1 taken 33 times. ✓ Branch 2 taken 272 times.	1273	if(! digit_chars(*it))
49			{
50			// expected digit
51		871	BOOST_URL_RETURN_EC(
52			error::mismatch);
53			}
54			static constexpr U Digits10 =
55			std::numeric_limits<
56			U>::digits10;
57			static constexpr U ten = 10;
58			char const* safe_end;
59		402	if(static_cast<std::size_t>(
60	3/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✓ Branch 1 taken 112 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 174 times. ✓ Branch 1 taken 98 times.	402	end - it) >= Digits10)
61		186	safe_end = it + Digits10;
62			else
63		216	safe_end = end;
64		402	U u = *it - '0';
65		402	++it;
66	10/12 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 0 taken 78 times. ✓ Branch 1 taken 34 times. ✗ Branch 2 not taken. ✓ Branch 3 taken 78 times. ✗ Branch 4 not taken. ✓ Branch 5 taken 112 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 578 times. ✓ Branch 1 taken 178 times. ✓ Branch 2 taken 484 times. ✓ Branch 3 taken 94 times. ✓ Branch 4 taken 484 times. ✓ Branch 5 taken 272 times.	1630	while(it != safe_end &&
67		700	digit_chars(*it))
68			{
69		528	char const dig = *it - '0';
70		528	u = u * ten + dig;
71		528	++it;
72			}
73	10/12 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✓ Branch 0 taken 78 times. ✓ Branch 1 taken 34 times. ✗ Branch 2 not taken. ✓ Branch 3 taken 78 times. ✗ Branch 4 not taken. ✓ Branch 5 taken 112 times. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 161 times. ✓ Branch 1 taken 111 times. ✓ Branch 2 taken 32 times. ✓ Branch 3 taken 129 times. ✓ Branch 4 taken 32 times. ✓ Branch 5 taken 240 times.	653	if( it != end &&
74		251	digit_chars(*it))
75			{
76			static constexpr U Max = (
77			std::numeric_limits<
78			U>::max)();
79			static constexpr
80			auto div = (Max / ten);
81			static constexpr
82			char rem = (Max % ten);
83		44	char const dig = *it - '0';
84	2/4 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✗ Branch 1 not taken. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 22 times. ✓ Branch 1 taken 10 times.	44	if( u > div \|\| (
85	4/8 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✗ Branch 3 not taken. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 16 times. ✓ Branch 1 taken 6 times. ✓ Branch 2 taken 7 times. ✓ Branch 3 taken 9 times.	31	u == div && dig > rem))
86			{
87			// integer overflow
88		23	BOOST_URL_RETURN_EC(
89			error::invalid);
90			}
91		21	u = u * ten + dig;
92		21	++it;
93	6/12 boost::urls::grammar::unsigned_rule<unsigned long>::parse(char const&, char const) const: ✗ Branch 0 not taken. ✗ Branch 1 not taken. ✗ Branch 2 not taken. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken. boost::urls::grammar::unsigned_rule<unsigned short>::parse(char const&, char const) const: ✓ Branch 0 taken 5 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 4 times. ✓ Branch 3 taken 1 time. ✓ Branch 4 taken 4 times. ✓ Branch 5 taken 11 times.	28	if( it < end &&
94		7	digit_chars(*it))
95			{
96			// integer overflow
97		6	BOOST_URL_RETURN_EC(
98			error::invalid);
99			}
100			}
101
102		373	return u;
103			}
104
105			} // grammar
106			} // urls
107			} // boost
108
109			#endif
110

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