clang/test/Sema/incomplete-decl.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 struct foo; // expected-note 5 {{forward declaration of 'struct foo'}}
   4
   5 void b;  // expected-error {{variable has incomplete type 'void'}}
   6 struct foo f; // expected-error{{tentative definition has type 'struct foo' that is never completed}}
   7
   8 static void c; // expected-error {{variable has incomplete type 'void'}}
   9 static struct foo g;  // expected-warning {{tentative definition of variable with internal linkage has incomplete non-array type 'struct foo'}} \
  10     expected-error{{tentative definition has type 'struct foo' that is never completed}}
  11
  12 extern void d;
  13 extern struct foo e;
  14
  15 int ary[]; // expected-warning {{tentative array definition assumed to have one element}}
  16 struct foo bary[]; // expected-error {{array has incomplete element type 'struct foo'}}
  17
  18 void func(void) {
  19   int ary[]; // expected-error{{definition of variable with array type needs an explicit size or an initializer}}
  20   void b; // expected-error {{variable has incomplete type 'void'}}
  21   struct foo f; // expected-error {{variable has incomplete type 'struct foo'}}
  22 }
  23
  24 int h[]; // expected-warning {{tentative array definition assumed to have one element}}
  25 int (*i)[] = &h+1; // expected-error {{arithmetic on a pointer to an incomplete type 'int[]'}}
  26
  27 struct bar j = {1}; // expected-error {{variable has incomplete type 'struct bar'}} \
  28     expected-note {{forward declaration of 'struct bar'}}
  29 struct bar k;
  30 struct bar { int a; };
  31