| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
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| 2 | |
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| 3 | struct S { S(int); operator bool(); }; |
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| 4 | |
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| 5 | void f() { |
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| 6 | int a; |
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| 7 | typedef int n; |
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| 8 | |
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| 9 | while (a) ; |
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| 10 | while (int x) ; // expected-error {{variable declaration in condition must have an initializer}} |
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| 11 | while (float x = 0) ; |
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| 12 | if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}} |
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| 13 | switch (int x = a+10) {} |
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| 14 | for (; int x = ++a; ) ; |
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| 15 | |
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| 16 | if (S(a)) {} // ok |
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| 17 | if (S(a) = 0) {} // expected-warning {{redundant parentheses}} expected-note 2{{}} |
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| 18 | if (S(a) == 0) {} // ok |
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| 19 | |
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| 20 | if (S(n)) {} // expected-error {{unexpected type name 'n': expected expression}} |
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| 21 | if (S(n) = 0) {} // expected-warning {{redundant parentheses}} expected-note 2{{}} |
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| 22 | if (S(n) == 0) {} // expected-error {{unexpected type name 'n': expected expression}} |
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| 23 | |
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| 24 | if (S b(a)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}} |
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| 25 | |
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| 26 | if (S b(n)) {} // expected-error {{a function type is not allowed here}} |
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| 27 | if (S b(n) = 0) {} // expected-error {{a function type is not allowed here}} |
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| 28 | if (S b(n) == 0) {} // expected-error {{a function type is not allowed here}} |
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| 29 | |
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| 30 | S s(a); |
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| 31 | if (S{s}) {} // ok |
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| 32 | if (S a{s}) {} // ok |
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| 33 | if (S a = {s}) {} // ok |
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| 34 | if (S a == {s}) {} // expected-error {{did you mean '='?}} |
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| 35 | |
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| 36 | if (S(b){a}) {} // ok |
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| 37 | if (S(b) = {a}) {} // ok |
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| 38 | } |
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| 39 | |
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