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algorithmfwd.h
21.23
KB
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2025-03-31 10:36
alloc_traits.h
19.6
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allocated_ptr.h
3.22
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allocator.h
7.39
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2025-03-31 10:36
atomic_base.h
23.28
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2025-03-31 10:36
atomic_futex.h
9.35
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2025-03-31 10:36
atomic_lockfree_defines.h
2.2
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2025-03-31 10:36
basic_ios.h
15.7
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2025-03-31 10:36
basic_ios.tcc
5.94
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2025-03-31 10:36
basic_string.h
237.01
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2025-03-31 10:36
basic_string.tcc
52.5
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2025-03-31 10:36
boost_concept_check.h
26.52
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2025-03-31 10:36
c++0x_warning.h
1.44
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char_traits.h
20.42
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codecvt.h
20.79
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concept_check.h
3.34
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cpp_type_traits.h
9.56
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2025-03-31 10:36
cxxabi_forced.h
1.77
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cxxabi_init_exception.h
2.17
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2025-03-31 10:36
deque.tcc
33.32
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2025-03-31 10:36
enable_special_members.h
12.1
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2025-03-31 10:36
exception.h
2.23
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2025-03-31 10:36
exception_defines.h
1.61
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exception_ptr.h
5.84
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2025-03-31 10:36
forward_list.h
47.77
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2025-03-31 10:36
forward_list.tcc
12.86
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2025-03-31 10:36
fs_dir.h
14.38
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2025-03-31 10:36
fs_fwd.h
10.04
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2025-03-31 10:36
fs_ops.h
9.5
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2025-03-31 10:36
fs_path.h
32.12
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2025-03-31 10:36
fstream.tcc
32.03
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2025-03-31 10:36
functexcept.h
3.18
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2025-03-31 10:36
functional_hash.h
8.04
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2025-03-31 10:36
gslice.h
5.39
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2025-03-31 10:36
gslice_array.h
7.59
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2025-03-31 10:36
hash_bytes.h
2.1
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2025-03-31 10:36
hashtable.h
72.06
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2025-03-31 10:36
hashtable_policy.h
66.38
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2025-03-31 10:36
indirect_array.h
7.68
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2025-03-31 10:36
invoke.h
3.57
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2025-03-31 10:36
ios_base.h
30.3
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2025-03-31 10:36
istream.tcc
30.36
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2025-03-31 10:36
list.tcc
15.6
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2025-03-31 10:36
locale_classes.h
24.31
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2025-03-31 10:36
locale_classes.tcc
8.18
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locale_conv.h
15.72
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2025-03-31 10:36
locale_facets.h
90.16
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2025-03-31 10:36
locale_facets.tcc
38.62
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locale_facets_nonio.h
67.36
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2025-03-31 10:36
locale_facets_nonio.tcc
44.22
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2025-03-31 10:36
localefwd.h
5.51
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2025-03-31 10:36
mask_array.h
7.42
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2025-03-31 10:36
memoryfwd.h
2.4
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2025-03-31 10:36
move.h
6.38
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2025-03-31 10:36
nested_exception.h
4.69
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2025-03-31 10:36
node_handle.h
8.02
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2025-03-31 10:36
ostream.tcc
12.03
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2025-03-31 10:36
ostream_insert.h
3.91
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2025-03-31 10:36
parse_numbers.h
7.76
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2025-03-31 10:36
postypes.h
8.02
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2025-03-31 10:36
predefined_ops.h
8.87
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2025-03-31 10:36
ptr_traits.h
6.47
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2025-03-31 10:36
quoted_string.h
4.93
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2025-03-31 10:36
random.h
171.14
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2025-03-31 10:36
random.tcc
103.12
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2025-03-31 10:36
range_access.h
9.79
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2025-03-31 10:36
refwrap.h
11.61
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2025-03-31 10:36
regex.h
95.12
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2025-03-31 10:36
regex.tcc
16.18
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2025-03-31 10:36
regex_automaton.h
10.47
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2025-03-31 10:36
regex_automaton.tcc
7.65
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2025-03-31 10:36
regex_compiler.h
17.63
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2025-03-31 10:36
regex_compiler.tcc
18.84
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2025-03-31 10:36
regex_constants.h
14.36
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2025-03-31 10:36
regex_error.h
4.79
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2025-03-31 10:36
regex_executor.h
7.31
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2025-03-31 10:36
regex_executor.tcc
18.4
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2025-03-31 10:36
regex_scanner.h
6.92
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2025-03-31 10:36
regex_scanner.tcc
14.66
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2025-03-31 10:36
shared_ptr.h
22.88
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2025-03-31 10:36
shared_ptr_atomic.h
9.54
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2025-03-31 10:36
shared_ptr_base.h
53.01
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2025-03-31 10:36
slice_array.h
9.13
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2025-03-31 10:36
specfun.h
45.95
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2025-03-31 10:36
sstream.tcc
9.9
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2025-03-31 10:36
std_abs.h
3.19
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2025-03-31 10:36
std_function.h
22.71
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2025-03-31 10:36
std_mutex.h
9.08
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2025-03-31 10:36
stl_algo.h
209.27
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2025-03-31 10:36
stl_algobase.h
49.31
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2025-03-31 10:36
stl_bvector.h
32.94
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2025-03-31 10:36
stl_construct.h
7.22
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2025-03-31 10:36
stl_deque.h
76.73
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2025-03-31 10:36
stl_function.h
40.77
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2025-03-31 10:36
stl_heap.h
19.73
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stl_iterator.h
41.3
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stl_iterator_base_funcs.h
7.99
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2025-03-31 10:36
stl_iterator_base_types.h
8.48
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stl_list.h
65.97
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2025-03-31 10:36
stl_map.h
51.55
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2025-03-31 10:36
stl_multimap.h
40.58
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2025-03-31 10:36
stl_multiset.h
34.97
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2025-03-31 10:36
stl_numeric.h
13.51
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2025-03-31 10:36
stl_pair.h
18.21
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2025-03-31 10:36
stl_queue.h
23.51
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2025-03-31 10:36
stl_raw_storage_iter.h
3.74
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stl_relops.h
4.49
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stl_set.h
35.28
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stl_stack.h
11.66
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stl_tempbuf.h
8.15
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stl_tree.h
73.15
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2025-03-31 10:36
stl_uninitialized.h
27.06
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stl_vector.h
59.12
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2025-03-31 10:36
stream_iterator.h
6.5
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streambuf.tcc
4.81
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2025-03-31 10:36
streambuf_iterator.h
13.44
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2025-03-31 10:36
string_view.tcc
6.54
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2025-03-31 10:36
stringfwd.h
2.55
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2025-03-31 10:36
uniform_int_dist.h
9.84
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2025-03-31 10:36
unique_ptr.h
25.38
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2025-03-31 10:36
unordered_map.h
73.58
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2025-03-31 10:36
unordered_set.h
57.76
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2025-03-31 10:36
uses_allocator.h
6.37
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2025-03-31 10:36
valarray_after.h
22.12
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valarray_array.h
21.3
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valarray_array.tcc
7.08
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valarray_before.h
18.08
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2025-03-31 10:36
vector.tcc
28.95
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2025-03-31 10:36
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// Pair implementation -*- C++ -*- // Copyright (C) 2001-2018 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /* * * Copyright (c) 1994 * Hewlett-Packard Company * * Permission to use, copy, modify, distribute and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and * that both that copyright notice and this permission notice appear * in supporting documentation. Hewlett-Packard Company makes no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. * * * Copyright (c) 1996,1997 * Silicon Graphics Computer Systems, Inc. * * Permission to use, copy, modify, distribute and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and * that both that copyright notice and this permission notice appear * in supporting documentation. Silicon Graphics makes no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. */ /** @file bits/stl_pair.h * This is an internal header file, included by other library headers. * Do not attempt to use it directly. @headername{utility} */ #ifndef _STL_PAIR_H #define _STL_PAIR_H 1 #include <bits/move.h> // for std::move / std::forward, and std::swap #if __cplusplus >= 201103L #include <type_traits> // for std::__decay_and_strip too #endif namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /** * @addtogroup utilities * @{ */ #if __cplusplus >= 201103L /// piecewise_construct_t struct piecewise_construct_t { explicit piecewise_construct_t() = default; }; /// piecewise_construct _GLIBCXX17_INLINE constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); // Forward declarations. template<typename...> class tuple; template<std::size_t...> struct _Index_tuple; // Concept utility functions, reused in conditionally-explicit // constructors. // See PR 70437, don't look at is_constructible or // is_convertible if the types are the same to // avoid querying those properties for incomplete types. template <bool, typename _T1, typename _T2> struct _PCC { template <typename _U1, typename _U2> static constexpr bool _ConstructiblePair() { return __and_<is_constructible<_T1, const _U1&>, is_constructible<_T2, const _U2&>>::value; } template <typename _U1, typename _U2> static constexpr bool _ImplicitlyConvertiblePair() { return __and_<is_convertible<const _U1&, _T1>, is_convertible<const _U2&, _T2>>::value; } template <typename _U1, typename _U2> static constexpr bool _MoveConstructiblePair() { return __and_<is_constructible<_T1, _U1&&>, is_constructible<_T2, _U2&&>>::value; } template <typename _U1, typename _U2> static constexpr bool _ImplicitlyMoveConvertiblePair() { return __and_<is_convertible<_U1&&, _T1>, is_convertible<_U2&&, _T2>>::value; } template <bool __implicit, typename _U1, typename _U2> static constexpr bool _CopyMovePair() { using __do_converts = __and_<is_convertible<const _U1&, _T1>, is_convertible<_U2&&, _T2>>; using __converts = typename conditional<__implicit, __do_converts, __not_<__do_converts>>::type; return __and_<is_constructible<_T1, const _U1&>, is_constructible<_T2, _U2&&>, __converts >::value; } template <bool __implicit, typename _U1, typename _U2> static constexpr bool _MoveCopyPair() { using __do_converts = __and_<is_convertible<_U1&&, _T1>, is_convertible<const _U2&, _T2>>; using __converts = typename conditional<__implicit, __do_converts, __not_<__do_converts>>::type; return __and_<is_constructible<_T1, _U1&&>, is_constructible<_T2, const _U2&&>, __converts >::value; } }; template <typename _T1, typename _T2> struct _PCC<false, _T1, _T2> { template <typename _U1, typename _U2> static constexpr bool _ConstructiblePair() { return false; } template <typename _U1, typename _U2> static constexpr bool _ImplicitlyConvertiblePair() { return false; } template <typename _U1, typename _U2> static constexpr bool _MoveConstructiblePair() { return false; } template <typename _U1, typename _U2> static constexpr bool _ImplicitlyMoveConvertiblePair() { return false; } }; // PR libstdc++/79141, a utility type for preventing // initialization of an argument of a disabled assignment // operator from a pair of empty braces. struct __nonesuch_no_braces : std::__nonesuch { explicit __nonesuch_no_braces(const __nonesuch&) = delete; }; #endif // C++11 template<typename _U1, typename _U2> class __pair_base { #if __cplusplus >= 201103L template<typename _T1, typename _T2> friend struct pair; __pair_base() = default; ~__pair_base() = default; __pair_base(const __pair_base&) = default; __pair_base& operator=(const __pair_base&) = delete; #endif // C++11 }; /** * @brief Struct holding two objects of arbitrary type. * * @tparam _T1 Type of first object. * @tparam _T2 Type of second object. */ template<typename _T1, typename _T2> struct pair : private __pair_base<_T1, _T2> { typedef _T1 first_type; /// @c first_type is the first bound type typedef _T2 second_type; /// @c second_type is the second bound type _T1 first; /// @c first is a copy of the first object _T2 second; /// @c second is a copy of the second object // _GLIBCXX_RESOLVE_LIB_DEFECTS // 265. std::pair::pair() effects overly restrictive /** The default constructor creates @c first and @c second using their * respective default constructors. */ #if __cplusplus >= 201103L template <typename _U1 = _T1, typename _U2 = _T2, typename enable_if<__and_< __is_implicitly_default_constructible<_U1>, __is_implicitly_default_constructible<_U2>> ::value, bool>::type = true> #endif _GLIBCXX_CONSTEXPR pair() : first(), second() { } #if __cplusplus >= 201103L template <typename _U1 = _T1, typename _U2 = _T2, typename enable_if<__and_< is_default_constructible<_U1>, is_default_constructible<_U2>, __not_< __and_<__is_implicitly_default_constructible<_U1>, __is_implicitly_default_constructible<_U2>>>> ::value, bool>::type = false> explicit constexpr pair() : first(), second() { } #endif /** Two objects may be passed to a @c pair constructor to be copied. */ #if __cplusplus < 201103L pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) { } #else // Shortcut for constraining the templates that don't take pairs. using _PCCP = _PCC<true, _T1, _T2>; template<typename _U1 = _T1, typename _U2=_T2, typename enable_if<_PCCP::template _ConstructiblePair<_U1, _U2>() && _PCCP::template _ImplicitlyConvertiblePair<_U1, _U2>(), bool>::type=true> constexpr pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) { } template<typename _U1 = _T1, typename _U2=_T2, typename enable_if<_PCCP::template _ConstructiblePair<_U1, _U2>() && !_PCCP::template _ImplicitlyConvertiblePair<_U1, _U2>(), bool>::type=false> explicit constexpr pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) { } #endif /** There is also a templated copy ctor for the @c pair class itself. */ #if __cplusplus < 201103L template<typename _U1, typename _U2> pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) { } #else // Shortcut for constraining the templates that take pairs. template <typename _U1, typename _U2> using _PCCFP = _PCC<!is_same<_T1, _U1>::value || !is_same<_T2, _U2>::value, _T1, _T2>; template<typename _U1, typename _U2, typename enable_if<_PCCFP<_U1, _U2>::template _ConstructiblePair<_U1, _U2>() && _PCCFP<_U1, _U2>::template _ImplicitlyConvertiblePair<_U1, _U2>(), bool>::type=true> constexpr pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) { } template<typename _U1, typename _U2, typename enable_if<_PCCFP<_U1, _U2>::template _ConstructiblePair<_U1, _U2>() && !_PCCFP<_U1, _U2>::template _ImplicitlyConvertiblePair<_U1, _U2>(), bool>::type=false> explicit constexpr pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) { } constexpr pair(const pair&) = default; constexpr pair(pair&&) = default; // DR 811. template<typename _U1, typename enable_if<_PCCP::template _MoveCopyPair<true, _U1, _T2>(), bool>::type=true> constexpr pair(_U1&& __x, const _T2& __y) : first(std::forward<_U1>(__x)), second(__y) { } template<typename _U1, typename enable_if<_PCCP::template _MoveCopyPair<false, _U1, _T2>(), bool>::type=false> explicit constexpr pair(_U1&& __x, const _T2& __y) : first(std::forward<_U1>(__x)), second(__y) { } template<typename _U2, typename enable_if<_PCCP::template _CopyMovePair<true, _T1, _U2>(), bool>::type=true> constexpr pair(const _T1& __x, _U2&& __y) : first(__x), second(std::forward<_U2>(__y)) { } template<typename _U2, typename enable_if<_PCCP::template _CopyMovePair<false, _T1, _U2>(), bool>::type=false> explicit pair(const _T1& __x, _U2&& __y) : first(__x), second(std::forward<_U2>(__y)) { } template<typename _U1, typename _U2, typename enable_if<_PCCP::template _MoveConstructiblePair<_U1, _U2>() && _PCCP::template _ImplicitlyMoveConvertiblePair<_U1, _U2>(), bool>::type=true> constexpr pair(_U1&& __x, _U2&& __y) : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { } template<typename _U1, typename _U2, typename enable_if<_PCCP::template _MoveConstructiblePair<_U1, _U2>() && !_PCCP::template _ImplicitlyMoveConvertiblePair<_U1, _U2>(), bool>::type=false> explicit constexpr pair(_U1&& __x, _U2&& __y) : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { } template<typename _U1, typename _U2, typename enable_if<_PCCFP<_U1, _U2>::template _MoveConstructiblePair<_U1, _U2>() && _PCCFP<_U1, _U2>::template _ImplicitlyMoveConvertiblePair<_U1, _U2>(), bool>::type=true> constexpr pair(pair<_U1, _U2>&& __p) : first(std::forward<_U1>(__p.first)), second(std::forward<_U2>(__p.second)) { } template<typename _U1, typename _U2, typename enable_if<_PCCFP<_U1, _U2>::template _MoveConstructiblePair<_U1, _U2>() && !_PCCFP<_U1, _U2>::template _ImplicitlyMoveConvertiblePair<_U1, _U2>(), bool>::type=false> explicit constexpr pair(pair<_U1, _U2>&& __p) : first(std::forward<_U1>(__p.first)), second(std::forward<_U2>(__p.second)) { } template<typename... _Args1, typename... _Args2> pair(piecewise_construct_t, tuple<_Args1...>, tuple<_Args2...>); pair& operator=(typename conditional< __and_<is_copy_assignable<_T1>, is_copy_assignable<_T2>>::value, const pair&, const __nonesuch_no_braces&>::type __p) { first = __p.first; second = __p.second; return *this; } pair& operator=(typename conditional< __and_<is_move_assignable<_T1>, is_move_assignable<_T2>>::value, pair&&, __nonesuch_no_braces&&>::type __p) noexcept(__and_<is_nothrow_move_assignable<_T1>, is_nothrow_move_assignable<_T2>>::value) { first = std::forward<first_type>(__p.first); second = std::forward<second_type>(__p.second); return *this; } template<typename _U1, typename _U2> typename enable_if<__and_<is_assignable<_T1&, const _U1&>, is_assignable<_T2&, const _U2&>>::value, pair&>::type operator=(const pair<_U1, _U2>& __p) { first = __p.first; second = __p.second; return *this; } template<typename _U1, typename _U2> typename enable_if<__and_<is_assignable<_T1&, _U1&&>, is_assignable<_T2&, _U2&&>>::value, pair&>::type operator=(pair<_U1, _U2>&& __p) { first = std::forward<_U1>(__p.first); second = std::forward<_U2>(__p.second); return *this; } void swap(pair& __p) noexcept(__and_<__is_nothrow_swappable<_T1>, __is_nothrow_swappable<_T2>>::value) { using std::swap; swap(first, __p.first); swap(second, __p.second); } private: template<typename... _Args1, std::size_t... _Indexes1, typename... _Args2, std::size_t... _Indexes2> pair(tuple<_Args1...>&, tuple<_Args2...>&, _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>); #endif }; #if __cpp_deduction_guides >= 201606 template<typename _T1, typename _T2> pair(_T1, _T2) -> pair<_T1, _T2>; #endif /// Two pairs of the same type are equal iff their members are equal. template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return __x.first == __y.first && __x.second == __y.second; } /// <http://gcc.gnu.org/onlinedocs/libstdc++/manual/utilities.html> template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second); } /// Uses @c operator== to find the result. template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return !(__x == __y); } /// Uses @c operator< to find the result. template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return __y < __x; } /// Uses @c operator< to find the result. template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return !(__y < __x); } /// Uses @c operator< to find the result. template<typename _T1, typename _T2> inline _GLIBCXX_CONSTEXPR bool operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) { return !(__x < __y); } #if __cplusplus >= 201103L /// See std::pair::swap(). // Note: no std::swap overloads in C++03 mode, this has performance // implications, see, eg, libstdc++/38466. template<typename _T1, typename _T2> inline #if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 // Constrained free swap overload, see p0185r1 typename enable_if<__and_<__is_swappable<_T1>, __is_swappable<_T2>>::value>::type #else void #endif swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y) noexcept(noexcept(__x.swap(__y))) { __x.swap(__y); } #if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 template<typename _T1, typename _T2> typename enable_if<!__and_<__is_swappable<_T1>, __is_swappable<_T2>>::value>::type swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete; #endif #endif // __cplusplus >= 201103L /** * @brief A convenience wrapper for creating a pair from two objects. * @param __x The first object. * @param __y The second object. * @return A newly-constructed pair<> object of the appropriate type. * * The standard requires that the objects be passed by reference-to-const, * but LWG issue #181 says they should be passed by const value. We follow * the LWG by default. */ // _GLIBCXX_RESOLVE_LIB_DEFECTS // 181. make_pair() unintended behavior #if __cplusplus >= 201103L // NB: DR 706. template<typename _T1, typename _T2> constexpr pair<typename __decay_and_strip<_T1>::__type, typename __decay_and_strip<_T2>::__type> make_pair(_T1&& __x, _T2&& __y) { typedef typename __decay_and_strip<_T1>::__type __ds_type1; typedef typename __decay_and_strip<_T2>::__type __ds_type2; typedef pair<__ds_type1, __ds_type2> __pair_type; return __pair_type(std::forward<_T1>(__x), std::forward<_T2>(__y)); } #else template<typename _T1, typename _T2> inline pair<_T1, _T2> make_pair(_T1 __x, _T2 __y) { return pair<_T1, _T2>(__x, __y); } #endif /// @} _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif /* _STL_PAIR_H */