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After sleeping on it I've decided that all special members that can be noexcept, should be declared so. The client has the traits to detect and branch on this information, and it is often an important optimization. Give deque() a noexcept. Add test for deque default constructor and deque destructor.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132549 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2011-06-03 15:16:49 +00:00
parent 93f2764b16
commit 009b2c4583
4 changed files with 109 additions and 4 deletions
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11
include/deque
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@@ -38,7 +38,7 @@ public:
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
// construct/copy/destroy:
deque();
deque() noexcept(is_nothrow_default_constructible<allocator_type>::value);
explicit deque(const allocator_type& a);
explicit deque(size_type n);
deque(size_type n, const value_type& v);
@@ -934,7 +934,8 @@ protected:
_LIBCPP_INLINE_VISIBILITY
const allocator_type& __alloc() const _NOEXCEPT {return __size_.second();}
__deque_base();
__deque_base()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
explicit __deque_base(const allocator_type& __a);
public:
~__deque_base();
@@ -1072,6 +1073,7 @@ __deque_base<_Tp, _Allocator>::end() const _NOEXCEPT
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
__deque_base<_Tp, _Allocator>::__deque_base()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
: __start_(0), __size_(0) {}
template <class _Tp, class _Allocator>
@@ -1185,7 +1187,10 @@ public:
typedef _STD::reverse_iterator<const_iterator> const_reverse_iterator;
// construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY deque() {}
_LIBCPP_INLINE_VISIBILITY
deque()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
{}
_LIBCPP_INLINE_VISIBILITY deque(const allocator_type& __a) : __base(__a) {}
explicit deque(size_type __n);
deque(size_type __n, const value_type& __v);