| 1 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 %s |
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| 2 | // RUN: %clang_cc1 -triple i686-pc-win32 -fms-compatibility -fms-extensions -fsyntax-only -verify -std=c++11 -DMS %s |
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| 3 | |
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| 4 | template <bool> struct enable_if {}; |
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| 5 | template<> struct enable_if<true> { typedef void type; }; |
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| 6 | |
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| 7 | template <typename, typename> struct is_same { static constexpr bool value = false; }; |
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| 8 | template <typename T> struct is_same<T, T> { static constexpr bool value = true; }; |
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| 9 | |
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| 10 | |
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| 11 | |
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| 12 | |
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| 13 | struct S { |
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| 14 | // The only numeric types S can be converted to is __int128 and __float128. |
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| 15 | template <typename T, typename = typename enable_if< |
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| 16 | !((__is_integral(T) && sizeof(T) != 16) || |
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| 17 | is_same<T, float>::value || |
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| 18 | is_same<T, double>::value || |
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| 19 | is_same<T, long double>::value)>::type> |
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| 20 | operator T() { return T(); } |
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| 21 | }; |
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| 22 | |
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| 23 | void f() { |
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| 24 | #ifdef MS |
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| 25 | // When targeting Win32, __float128 and __int128 do not exist, so the S |
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| 26 | // object cannot be converted to anything usable in the expression. |
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| 27 | // expected-error@+2{{invalid operands to binary expression ('S' and 'double')}} |
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| 28 | #endif |
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| 29 | double d = S() + 1.0; |
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| 30 | #ifndef MS |
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| 31 | // expected-error@-2{{use of overloaded operator '+' is ambiguous}} |
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| 32 | // expected-note@-3 36{{built-in candidate operator+}} |
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| 33 | #endif |
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| 34 | } |
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| 35 | |
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