16 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3struct S { S(int); operator bool(); };4 5void f() {6 int a;7 while (a) ;8 while (int x) ; // expected-error {{variable declaration in condition must have an initializer}}9 while (float x = 0) ;10 if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}}11 switch (int x = a+10) {}12 for (; int x = ++a; ) ;13 14 if (S a(42)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}}15}16