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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <functional>
// template<CopyConstructible Fn, CopyConstructible... Types>
// unspecified bind(Fn, Types...);
// template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
// unspecified bind(Fn, Types...);
// https://bugs.llvm.org/show_bug.cgi?id=22003
#include <functional>
struct DummyUnaryFunction
{
template <typename S>
int operator()(S const &) const { return 0; }
};
struct BadUnaryFunction
{
template <typename S>
constexpr int operator()(S const &) const
{
// Trigger a compile error if this function is instantiated.
// The constexpr is needed so that it is instantiated while checking
// __invoke_of<BadUnaryFunction &, ...>.
static_assert(!std::is_same<S, S>::value, "Shit");
return 0;
}
};
int main()
{
// Check that BadUnaryFunction::operator()(S const &) is not
// instantiated when checking if BadUnaryFunction is a nested bind
// expression during b(0). See PR22003.
auto b = std::bind(DummyUnaryFunction(), BadUnaryFunction());
b(0);
auto b2 = std::bind<long>(DummyUnaryFunction(), BadUnaryFunction());
b2(0);
}
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