forked from OSchip/llvm-project
37 lines
1.5 KiB
C++
37 lines
1.5 KiB
C++
// 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
|
|
}
|