https://llvm.org/bugs/show_bug.cgi?id=22978
Bug ID: 22978
Summary: allocate_shared cannot allocate an allocator using
allocator of same type
Product: clang
Version: 3.6
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
#include <iostream>
#include <memory>
int main() {
auto a = std::allocate_shared<std::allocator<int>>(std::allocator<int>{});
return 0;
}
===[[[ERROR OUTPUT]]]===
../include/c++/v1/memory:2045:40: error: multiple overloads of
'__libcpp_compressed_pair_imp' instantiate to the same signature
'void (_T2_param)'
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param
__t2)
^
../include/c++/v1/memory:2298:15: note: in instantiation of template class
'std::__1::__libcpp_compressed_pair_imp<std::__1::allocator<int>,
std::__1::allocator<int>, 1>' requested here
: private __libcpp_compressed_pair_imp<_T1, _T2>
^
../include/c++/v1/memory:3686:36: note: in instantiation of template class
'std::__1::__compressed_pair<std::__1::allocator<int>,
std::__1::allocator<int> >' requested here
__compressed_pair<_Alloc, _Tp> __data_;
^
../include/c++/v1/memory:4289:26: note: in instantiation of template class
'std::__1::__shared_ptr_emplace<std::__1::allocator<int>,
std::__1::allocator<int> >' requested here
::new(__hold2.get()) _CntrlBlk(__a, _VSTD::forward<_Args>(__args)...);
^
../include/c++/v1/memory:4642:29: note: in instantiation of function template
specialization
'std::__1::shared_ptr<std::__1::allocator<int>
>::allocate_shared<std::__1::allocator<int>>' requested here
return shared_ptr<_Tp>::allocate_shared(__a,
_VSTD::forward<_Args>(__args)...);
It seems to be accepted on GCC compiler. Here is a online version:
http://ideone.com/W5C8US
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