| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 |
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| 2 | |
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| 3 | template<typename T> |
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| 4 | struct only { |
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| 5 | only(T); |
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| 6 | template<typename U> only(U) = delete; // expected-note {{here}} |
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| 7 | }; |
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| 8 | |
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| 9 | template<typename ...T> |
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| 10 | void f(T ...t) { |
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| 11 | auto x(t...); // expected-error {{is empty}} expected-error {{contains multiple expressions}} |
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| 12 | only<int> check = x; |
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| 13 | } |
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| 14 | |
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| 15 | void g() { |
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| 16 | f(); // expected-note {{here}} |
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| 17 | f(0); |
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| 18 | f(0, 1); // expected-note {{here}} |
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| 19 | } |
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| 20 | |
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| 21 | |
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| 22 | template<typename T> |
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| 23 | bool h(T t) { |
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| 24 | auto a = t; |
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| 25 | decltype(a) b; |
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| 26 | a = a + b; |
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| 27 | |
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| 28 | auto p = new auto(t); |
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| 29 | |
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| 30 | only<double*> test = p; // expected-error {{conversion function from 'char *' to 'only<double *>'}} |
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| 31 | return p; |
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| 32 | } |
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| 33 | |
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| 34 | bool b = h('x'); // expected-note {{here}} |
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| 35 | |
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| 36 | // PR 9276 - Make sure we check auto types deduce the same |
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| 37 | // in the case of a dependent initializer |
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| 38 | namespace PR9276 { |
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| 39 | template<typename T> |
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| 40 | void f() { |
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| 41 | auto i = T(), j = 0; // expected-error {{deduced as 'long' in declaration of 'i' and deduced as 'int' in declaration of 'j'}} |
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| 42 | } |
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| 43 | |
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| 44 | void g() { |
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| 45 | f<long>(); // expected-note {{here}} |
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| 46 | f<int>(); |
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| 47 | } |
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| 48 | } |
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| 49 | |
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| 50 | namespace NoRepeatedDiagnostic { |
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| 51 | template<typename T> |
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| 52 | void f() { |
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| 53 | auto a = 0, b = 0.0, c = T(); // expected-error {{deduced as 'int' in declaration of 'a' and deduced as 'double' in declaration of 'b'}} |
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| 54 | } |
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| 55 | // We've already diagnosed an issue. No extra diagnostics is needed for these. |
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| 56 | template void f<int>(); |
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| 57 | template void f<double>(); |
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| 58 | template void f<char>(); |
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| 59 | } |
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| 60 | |
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