| // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
| |
| struct S { S(int); operator bool(); }; |
| |
| void f() { |
| int a; |
| typedef int n; |
| |
| while (a) ; |
| while (int x) ; // expected-error {{variable declaration in condition must have an initializer}} |
| while (float x = 0) ; |
| if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}} |
| switch (int x = a+10) {} |
| for (; int x = ++a; ) ; |
| |
| if (S(a)) {} // ok |
| if (S(a) = 0) {} // ok |
| if (S(a) == 0) {} // ok |
| |
| if (S(n)) {} // expected-error {{unexpected type name 'n': expected expression}} |
| if (S(n) = 0) {} // ok |
| if (S(n) == 0) {} // expected-error {{unexpected type name 'n': expected expression}} |
| |
| if (S b(a)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}} |
| |
| if (S b(n)) {} // expected-error {{a function type is not allowed here}} |
| if (S b(n) = 0) {} // expected-error {{a function type is not allowed here}} |
| if (S b(n) == 0) {} // expected-error {{a function type is not allowed here}} |
| |
| S s(a); |
| if (S{s}) {} // ok |
| if (S a{s}) {} // ok |
| if (S a = {s}) {} // ok |
| if (S a == {s}) {} // expected-error {{did you mean '='?}} |
| |
| if (S(b){a}) {} // ok |
| if (S(b) = {a}) {} // ok |
| } |
