下面的代码是否应该根据C++ 11产生编译错误(如果是这样,为什么?),还是VC11有问题?对持有unique_ptr向量的对象列表进行排序
#include <vector>
#include <list>
#include <memory>
struct A
{
std::vector<std::unique_ptr<int>> v;
};
int main()
{
std::list<A> l;
l.sort([](const A& a1, const A& a2){ return true; });
}
的Visual C++ 2012产生以下编译错误:
1>c:\program files (x86)\microsoft visual studio 11.0\vc\include\xmemory0(606): error C2248: 'std::unique_ptr<_Ty>::unique_ptr' : cannot access private member declared in class 'std::unique_ptr<_Ty>'
1> with
1> [
1> _Ty=int
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\vc\include\memory(1447) : see declaration of 'std::unique_ptr<_Ty>::unique_ptr'
1> with
1> [
1> _Ty=int
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\vc\include\xmemory0(605) : while compiling class template member function 'void std::allocator<_Ty>::construct(_Ty *,const _Ty &)'
1> with
1> [
1> _Ty=std::unique_ptr<int>
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\vc\include\xmemory0(751) : see reference to function template instantiation 'void std::allocator<_Ty>::construct(_Ty *,const _Ty &)' being compiled
1> with
1> [
1> _Ty=std::unique_ptr<int>
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\vc\include\type_traits(743) : see reference to class template instantiation 'std::allocator<_Ty>' being compiled
1> with
1> [
1> _Ty=std::unique_ptr<int>
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\vc\include\vector(655) : see reference to class template instantiation 'std::is_empty<_Ty>' being compiled
1> with
1> [
1> _Ty=std::allocator<std::unique_ptr<int>>
1> ]
1> d:\test2\test2.cpp(213) : see reference to class template instantiation 'std::vector<_Ty>' being compiled
1> with
1> [
1> _Ty=std::unique_ptr<int>
1> ]
作为参考,我可以在Clang和GCC编译这很好。所以它不是你的编译器就是你的设置。 – chrisaycock 2013-05-05 14:31:32
@chrisaycock很好,我们将在Microsoft Connect上创建另一个VC11错误报告... – PowerGamer 2013-05-05 14:39:34
我宁愿放弃它。 – 2013-05-05 14:41:08