test/SemaCXX/decl-expr-ambiguity.cpp

   1 // RUN: clang -fsyntax-only -verify %s
   2
   3 void f() {
   4   int a;
   5   struct S { int m; };
   6   typedef S *T;
   7
   8   // Expressions.
   9   T(a)->m = 7;
  10   int(a)++; // expected-error {{invalid lvalue in increment/decrement expression}}
  11   __extension__ int(a)++; // expected-error {{invalid lvalue in increment/decrement expression}}
  12   typeof(int)(a,5)<<a; // expected-error {{function-style cast to a builtin type can only take one argument}}
  13   void(a), ++a; // expected-warning {{statement was disambiguated as expression}} expected-warning {{expression result unused}}
  14   if (int(a)+1) {}
  15   for (int(a)+1;;) {}
  16
  17   // Declarations.
  18   T(*d)(int(p)); // expected-warning {{statement was disambiguated as declaration}} expected-error {{previous definition is here}}
  19   T(d)[5]; // expected-warning {{statement was disambiguated as declaration}} expected-error {{redefinition of 'd'}}
  20   typeof(int[])(f) = { 1, 2 }; // expected-warning {{statement was disambiguated as declaration}}
  21   void(b)(int);
  22   int(d2) __attribute__(()); // expected-warning {{statement was disambiguated as declaration}}
  23   if (int(a)=1) {}
  24 }