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Fix PR#22284. Add a new overload to deque::insert to handle forward iterators. Update tests to exercise this case. 

llvm-svn: 226847
This commit is contained in:
Marshall Clow 2015-01-22 18:33:29 +00:00
parent cd6bbba186
commit f15d7a5882
2 changed files with 64 additions and 7 deletions
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28
libcxx/include/deque
View File

@ -117,7 +117,7 @@ public:
iterator insert(const_iterator p, value_type&& v);
iterator insert(const_iterator p, size_type n, const value_type& v);
template <class InputIterator>
iterator insert (const_iterator p, InputIterator f, InputIterator l);
iterator insert(const_iterator p, InputIterator f, InputIterator l);
iterator insert(const_iterator p, initializer_list<value_type> il);
void pop_front();
void pop_back();
@ -1332,11 +1332,15 @@ public:
iterator insert(const_iterator __p, const value_type& __v);
iterator insert(const_iterator __p, size_type __n, const value_type& __v);
template <class _InputIter>
iterator insert (const_iterator __p, _InputIter __f, _InputIter __l,
iterator insert(const_iterator __p, _InputIter __f, _InputIter __l,
typename enable_if<__is_input_iterator<_InputIter>::value
&&!__is_bidirectional_iterator<_InputIter>::value>::type* = 0);
&&!__is_forward_iterator<_InputIter>::value>::type* = 0);
template <class _ForwardIterator>
iterator insert(const_iterator __p, _ForwardIterator __f, _ForwardIterator __l,
typename enable_if<__is_forward_iterator<_ForwardIterator>::value
&&!__is_bidirectional_iterator<_ForwardIterator>::value>::type* = 0);
template <class _BiIter>
iterator insert (const_iterator __p, _BiIter __f, _BiIter __l,
iterator insert(const_iterator __p, _BiIter __f, _BiIter __l,
typename enable_if<__is_bidirectional_iterator<_BiIter>::value>::type* = 0);
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
_LIBCPP_INLINE_VISIBILITY
@ -2098,7 +2102,7 @@ template <class _InputIter>
typename deque<_Tp, _Allocator>::iterator
deque<_Tp, _Allocator>::insert(const_iterator __p, _InputIter __f, _InputIter __l,
typename enable_if<__is_input_iterator<_InputIter>::value
&&!__is_bidirectional_iterator<_InputIter>::value>::type*)
&&!__is_forward_iterator<_InputIter>::value>::type*)
{
__split_buffer<value_type, allocator_type&> __buf(__base::__alloc());
__buf.__construct_at_end(__f, __l);
@ -2106,6 +2110,20 @@ deque<_Tp, _Allocator>::insert(const_iterator __p, _InputIter __f, _InputIter __
return insert(__p, move_iterator<__bi>(__buf.begin()), move_iterator<__bi>(__buf.end()));
}
template <class _Tp, class _Allocator>
template <class _ForwardIterator>
typename deque<_Tp, _Allocator>::iterator
deque<_Tp, _Allocator>::insert(const_iterator __p, _ForwardIterator __f, _ForwardIterator __l,
typename enable_if<__is_forward_iterator<_ForwardIterator>::value
&&!__is_bidirectional_iterator<_ForwardIterator>::value>::type*)
{
size_type __n = _VSTD::distance(__f, __l);
__split_buffer<value_type, allocator_type&> __buf(__n, 0, __base::__alloc());
__buf.__construct_at_end(__f, __l);
typedef typename __split_buffer<value_type, allocator_type&>::iterator __fwd;
return insert(__p, move_iterator<__fwd>(__buf.begin()), move_iterator<__fwd>(__buf.end()));
}
template <class _Tp, class _Allocator>
template <class _BiIter>
typename deque<_Tp, _Allocator>::iterator

43
libcxx/test/std/containers/sequences/deque/deque.modifiers/insert_iter_iter.pass.cpp
View File

@ -46,11 +46,13 @@ make(int size, int start = 0 )
template <class C>
void
test(int P, C& c1, const C& c2)
test(int P, const C& c0, const C& c2)
{
{
typedef typename C::iterator I;
typedef typename C::const_iterator CI;
typedef bidirectional_iterator<CI> BCI;
typedef input_iterator<CI> BCI;
C c1 = c0;
std::size_t c1_osize = c1.size();
CI i = c1.insert(c1.begin() + P, BCI(c2.begin()), BCI(c2.end()));
assert(i == c1.begin() + P);
@ -63,6 +65,43 @@ test(int P, C& c1, const C& c2)
assert(*i == j);
for (int j = P; j < c1_osize; ++j, ++i)
assert(*i == j);
}
{
typedef typename C::iterator I;
typedef typename C::const_iterator CI;
typedef forward_iterator<CI> BCI;
C c1 = c0;
std::size_t c1_osize = c1.size();
CI i = c1.insert(c1.begin() + P, BCI(c2.begin()), BCI(c2.end()));
assert(i == c1.begin() + P);
assert(c1.size() == c1_osize + c2.size());
assert(distance(c1.begin(), c1.end()) == c1.size());
i = c1.begin();
for (int j = 0; j < P; ++j, ++i)
assert(*i == j);
for (int j = 0; j < c2.size(); ++j, ++i)
assert(*i == j);
for (int j = P; j < c1_osize; ++j, ++i)
assert(*i == j);
}
{
typedef typename C::iterator I;
typedef typename C::const_iterator CI;
typedef bidirectional_iterator<CI> BCI;
C c1 = c0;
std::size_t c1_osize = c1.size();
CI i = c1.insert(c1.begin() + P, BCI(c2.begin()), BCI(c2.end()));
assert(i == c1.begin() + P);
assert(c1.size() == c1_osize + c2.size());
assert(distance(c1.begin(), c1.end()) == c1.size());
i = c1.begin();
for (int j = 0; j < P; ++j, ++i)
assert(*i == j);
for (int j = 0; j < c2.size(); ++j, ++i)
assert(*i == j);
for (int j = P; j < c1_osize; ++j, ++i)
assert(*i == j);
}
}
template <class C>