| 1 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -std=c++11 %s |
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| 2 | |
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| 3 | // Make sure we handle contexts correctly with sizeof |
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| 4 | template<typename T> void f(T n) { |
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| 5 | int buffer[n]; |
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| 6 | [] { int x = sizeof(sizeof(buffer)); }(); |
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| 7 | } |
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| 8 | int main() { |
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| 9 | f<int>(1); |
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| 10 | } |
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| 11 | |
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| 12 | // Make sure we handle references to non-static data members in unevaluated |
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| 13 | // contexts in class template methods correctly. Previously we assumed these |
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| 14 | // would be valid MemberRefExprs, but they have no 'this' so we need to form a |
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| 15 | // DeclRefExpr to the FieldDecl instead. |
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| 16 | // PR26893 |
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| 17 | template <class T> |
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| 18 | struct M { |
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| 19 | M() {}; // expected-note {{in instantiation of default member initializer 'M<S>::m' requested here}} |
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| 20 | int m = *T::x; // expected-error {{invalid use of non-static data member 'x'}} |
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| 21 | void f() { |
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| 22 | // These are valid. |
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| 23 | static_assert(sizeof(T::x) == 8, "ptr"); |
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| 24 | static_assert(sizeof(*T::x) == 4, "int"); |
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| 25 | } |
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| 26 | }; |
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| 27 | struct S { int *x; }; |
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| 28 | template struct M<S>; // expected-note {{in instantiation of member function 'M<S>::M' requested here}} |
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| 29 | |
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| 30 | // Similar test case for PR26893. |
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| 31 | template <typename T=void> |
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| 32 | struct bar { |
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| 33 | struct foo { int array[10]; }; |
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| 34 | int baz() { return sizeof(foo::array); } |
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| 35 | }; |
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| 36 | template struct bar<>; |
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| 37 | |
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