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| // RUN: %clang_cc1 -triple x86_64-linux-gnu -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s
// RUN: %clang_cc1 -triple i686-pc-win32 -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 -DMS %s
template <bool> struct enable_if {};
template<> struct enable_if<true> { typedef void type; };
template <typename, typename> struct is_same { static constexpr bool value = false; };
template <typename T> struct is_same<T, T> { static constexpr bool value = true; };
struct S {
// The only numeric types S can be converted to are [unsigned] __int128 and __float128.
template <typename T, typename = typename enable_if<
!((__is_integral(T) && sizeof(T) != 16) ||
is_same<T, float>::value ||
is_same<T, double>::value ||
is_same<T, long double>::value)>::type>
operator T() { return T(); }
};
void f() {
#ifdef MS
// When targeting Win32, __float128 and __int128 do not exist, so the S
// object cannot be converted to anything usable in the expression.
// expected-error@+2{{invalid operands to binary expression ('S' and 'double')}}
#endif
double d = S() + 1.0;
#ifndef MS
// expected-error@-2{{use of overloaded operator '+' is ambiguous}}
// expected-note@-3 {{built-in candidate operator+(__float128, double)}}
// expected-note@-4 {{built-in candidate operator+(__int128, double)}}
// expected-note@-5 {{built-in candidate operator+(unsigned __int128, double)}}
#endif
}
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