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// PR c++/50391
// { dg-options -std=c++0x }
#include <type_traits>
template<class Tp>
struct single
{
Tp elem; // { dg-error "incomplete type" }
constexpr single(const Tp& e)
: elem(e) { } // { dg-error "invalid field" }
single(single&& s)
noexcept(std::is_nothrow_move_constructible<Tp>::value)
: elem(s.elem) { } // { dg-error "invalid field|no member" }
};
template<class Tp>
constexpr single<typename std::decay<Tp>::type>
make_single(Tp&& x)
{
return single<typename std::decay<Tp>::type>(x);
}
class Blob; // { dg-error "forward declaration" }
void
foo(Blob *b)
{
make_single(*b);
}
// { dg-prune-output "include" }
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