74ce297045
This reverts commit d708a186b6a9b050d09558163dd353d9f738c82d (and typo fix e4bc9898ddbeb70bc49d713bbf863f050f21e03f). It causes a compilation error for this:
```
struct StringLiteral {
template <int N>
StringLiteral(const char (&array)[N])
__attribute__((enable_if(N > 0 && N == __builtin_strlen(array) + 1,
"invalid string literal")));
};
struct Message {
Message(StringLiteral);
};
void Func1() {
auto x = Message("x"); // Note: this is fine
// Note: "xx\0" to force a different type, StringLiteral<3>, otherwise this
// successfully builds.
auto y = [&](decltype(Message("xx"))) {};
// ^ fails with: repro.cc:18:13: error: reference to local variable 'array'
// declared in enclosing function 'StringLiteral::StringLiteral<3>'
(void)x;
(void)y;
}
```
More details posted to D124351.
53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
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// RUN: %clang_cc1 -fsyntax-only -std=c++1y %s -verify -DCPP1Y
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void missing_lambda_declarator() {
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[](){}();
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}
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template<typename T> T get();
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void infer_void_return_type(int i) {
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if (i > 17)
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return []() { }();
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if (i > 11)
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return []() { return; }();
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return [](int x) {
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switch (x) {
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case 0: return get<void>();
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case 1: return;
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case 2: return { 1, 2.0 }; //expected-error{{cannot deduce}}
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}
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}(7);
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}
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struct X { };
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X infer_X_return_type(X x) {
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return [&x](int y) {
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if (y > 0)
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return X();
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else
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return x;
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}(5);
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}
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X infer_X_return_type_2(X x) {
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return [x](int y) {
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if (y > 0)
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return X();
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else
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return x; // ok even in c++11, per dr1048.
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}(5);
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}
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struct Incomplete; // expected-note{{forward declaration of 'Incomplete'}}
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void test_result_type(int N) {
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auto l1 = [] () -> Incomplete { }; // expected-error{{incomplete result type 'Incomplete' in lambda expression}}
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typedef int vla[N];
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auto l2 = [] () -> vla { }; // expected-error{{function cannot return array type 'vla' (aka 'int[N]')}}
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}
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