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Implement deduction guides for <deque>

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@332785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-05-18 23:44:13 +00:00
parent f2c627db20
commit 69c2095d92
3 changed files with 166 additions and 3 deletions
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29
include/deque
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@@ -128,6 +128,10 @@ public:
void clear() noexcept;
};
template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
deque(InputIterator, InputIterator, Allocator = Allocator())
-> deque<typename iterator_traits<InputIterator>::value_type, Allocator>;
template <class T, class Allocator>
bool operator==(const deque<T,Allocator>& x, const deque<T,Allocator>& y);
template <class T, class Allocator>
@@ -921,13 +925,14 @@ class __deque_base
{
__deque_base(const __deque_base& __c);
__deque_base& operator=(const __deque_base& __c);
protected:
typedef _Tp value_type;
public:
typedef _Allocator allocator_type;
typedef allocator_traits<allocator_type> __alloc_traits;
typedef typename __alloc_traits::size_type size_type;
protected:
typedef _Tp value_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename __alloc_traits::size_type size_type;
typedef typename __alloc_traits::difference_type difference_type;
typedef typename __alloc_traits::pointer pointer;
typedef typename __alloc_traits::const_pointer const_pointer;
@@ -946,6 +951,7 @@ protected:
typedef __deque_iterator<value_type, const_pointer, const_reference, __map_const_pointer,
difference_type> const_iterator;
protected:
__map __map_;
size_type __start_;
__compressed_pair<size_type, allocator_type> __size_;
@@ -1461,6 +1467,23 @@ private:
void __move_assign(deque& __c, false_type);
};
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template<class _InputIterator,
class _Alloc = typename std::allocator<typename iterator_traits<_InputIterator>::value_type>,
class = typename enable_if<__is_allocator<_Alloc>::value, void>::type
>
deque(_InputIterator, _InputIterator)
-> deque<typename iterator_traits<_InputIterator>::value_type, _Alloc>;
template<class _InputIterator,
class _Alloc,
class = typename enable_if<__is_allocator<_Alloc>::value, void>::type
>
deque(_InputIterator, _InputIterator, _Alloc)
-> deque<typename iterator_traits<_InputIterator>::value_type, _Alloc>;
#endif
template <class _Tp, class _Allocator>
deque<_Tp, _Allocator>::deque(size_type __n)
{