12a15b746SRichard Smith // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s 22a15b746SRichard Smith 32a15b746SRichard Smith struct S { S(int); operator bool(); }; 42a15b746SRichard Smith f()52a15b746SRichard Smithvoid f() { 62a15b746SRichard Smith int a; 72a15b746SRichard Smith typedef int n; 82a15b746SRichard Smith 92a15b746SRichard Smith while (a) ; 102a15b746SRichard Smith while (int x) ; // expected-error {{variable declaration in condition must have an initializer}} 112a15b746SRichard Smith while (float x = 0) ; 122a15b746SRichard Smith if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}} 132a15b746SRichard Smith switch (int x = a+10) {} 142a15b746SRichard Smith for (; int x = ++a; ) ; 152a15b746SRichard Smith 162a15b746SRichard Smith if (S(a)) {} // ok 17*ac63d635SRichard Smith if (S(a) = 0) {} // expected-warning {{redundant parentheses}} expected-note 2{{}} 182a15b746SRichard Smith if (S(a) == 0) {} // ok 192a15b746SRichard Smith 202a15b746SRichard Smith if (S(n)) {} // expected-error {{unexpected type name 'n': expected expression}} 21*ac63d635SRichard Smith if (S(n) = 0) {} // expected-warning {{redundant parentheses}} expected-note 2{{}} 222a15b746SRichard Smith if (S(n) == 0) {} // expected-error {{unexpected type name 'n': expected expression}} 232a15b746SRichard Smith 242a15b746SRichard Smith if (S b(a)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}} 252a15b746SRichard Smith 2603a4aa3dSRichard Smith if (S b(n)) {} // expected-error {{a function type is not allowed here}} 272a15b746SRichard Smith if (S b(n) = 0) {} // expected-error {{a function type is not allowed here}} 2803a4aa3dSRichard Smith if (S b(n) == 0) {} // expected-error {{a function type is not allowed here}} 292a15b746SRichard Smith 303267347cSRichard Trieu S s(a); 313267347cSRichard Trieu if (S{s}) {} // ok 323267347cSRichard Trieu if (S a{s}) {} // ok 333267347cSRichard Trieu if (S a = {s}) {} // ok 343267347cSRichard Trieu if (S a == {s}) {} // expected-error {{did you mean '='?}} 351e3b0f06SRichard Smith 361e3b0f06SRichard Smith if (S(b){a}) {} // ok 371e3b0f06SRichard Smith if (S(b) = {a}) {} // ok 382a15b746SRichard Smith } 39