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// UNSUPPORTED: c++98, c++03
#include <memory>
template <int> struct Tag {};
template <int ID>
using SPtr = std::shared_ptr<void(Tag<ID>)>;
template <int ID>
using FnType = void(Tag<ID>);
template <int ID>
void TestFn(Tag<ID>) {}
template <int ID>
FnType<ID>* getFn() {
return &TestFn<ID>;
}
struct Deleter {
template <class Tp>
void operator()(Tp) const {
using RawT = typename std::remove_pointer<Tp>::type;
static_assert(std::is_function<RawT>::value ||
std::is_same<typename std::remove_cv<RawT>::type,
std::nullptr_t>::value,
"");
}
};
int main() {
{
SPtr<0> s; // OK
SPtr<1> s1(nullptr); // OK
SPtr<2> s2(getFn<2>(), Deleter{}); // OK
SPtr<3> s3(nullptr, Deleter{}); // OK
}
// expected-error@memory:* 2 {{static_assert failed "default_delete cannot be instantiated for function types"}}
{
SPtr<4> s4(getFn<4>()); // expected-note {{requested here}}
SPtr<5> s5(getFn<5>(), std::default_delete<FnType<5>>{}); // expected-note {{requested here}}
}
}
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