clang/test/Parser/cxx-condition.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 struct S { S(int); operator bool(); };
   4
   5 void 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 }