1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s 2*67e74705SXin Li 3*67e74705SXin Li struct S { S(int); operator bool(); }; 4*67e74705SXin Li f()5*67e74705SXin Livoid f() { 6*67e74705SXin Li int a; 7*67e74705SXin Li typedef int n; 8*67e74705SXin Li 9*67e74705SXin Li while (a) ; 10*67e74705SXin Li while (int x) ; // expected-error {{variable declaration in condition must have an initializer}} 11*67e74705SXin Li while (float x = 0) ; 12*67e74705SXin Li if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}} 13*67e74705SXin Li switch (int x = a+10) {} 14*67e74705SXin Li for (; int x = ++a; ) ; 15*67e74705SXin Li 16*67e74705SXin Li if (S(a)) {} // ok 17*67e74705SXin Li if (S(a) = 0) {} // ok 18*67e74705SXin Li if (S(a) == 0) {} // ok 19*67e74705SXin Li 20*67e74705SXin Li if (S(n)) {} // expected-error {{unexpected type name 'n': expected expression}} 21*67e74705SXin Li if (S(n) = 0) {} // ok 22*67e74705SXin Li if (S(n) == 0) {} // expected-error {{unexpected type name 'n': expected expression}} 23*67e74705SXin Li 24*67e74705SXin Li if (S b(a)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}} 25*67e74705SXin Li 26*67e74705SXin Li if (S b(n)) {} // expected-error {{a function type is not allowed here}} 27*67e74705SXin Li if (S b(n) = 0) {} // expected-error {{a function type is not allowed here}} 28*67e74705SXin Li if (S b(n) == 0) {} // expected-error {{a function type is not allowed here}} 29*67e74705SXin Li 30*67e74705SXin Li S s(a); 31*67e74705SXin Li if (S{s}) {} // ok 32*67e74705SXin Li if (S a{s}) {} // ok 33*67e74705SXin Li if (S a = {s}) {} // ok 34*67e74705SXin Li if (S a == {s}) {} // expected-error {{did you mean '='?}} 35*67e74705SXin Li 36*67e74705SXin Li if (S(b){a}) {} // ok 37*67e74705SXin Li if (S(b) = {a}) {} // ok 38*67e74705SXin Li } 39