test/SemaCXX/enum.cpp

   1 // RUN: clang-cc -fsyntax-only -verify %s
   2 enum E {
   3   Val1,
   4   Val2
   5 };
   6
   7 int& enumerator_type(int);
   8 float& enumerator_type(E);
   9
  10 void f() {
  11   E e = Val1;
  12   float& fr = enumerator_type(Val2);
  13 }
  14
  15 // <rdar://problem/6502934>
  16 typedef enum Foo {
  17         A = 0,
  18         B = 1
  19 } Foo;
  20
  21
  22 void bar() {
  23         Foo myvar = A;
  24         myvar = B;
  25 }
  26
  27 /// PR3688
  28 struct s1 {
  29   enum e1 (*bar)(void); // expected-error{{ISO C++ forbids forward references to 'enum' types}} expected-note{{forward declaration of 'enum s1::e1'}}
  30 };
  31
  32 enum e1 { YES, NO };
  33
  34 static enum e1 badfunc(struct s1 *q) {
  35   return q->bar(); // expected-error{{return type of called function ('enum s1::e1') is incomplete}}
  36 }
  37
  38 enum e2; // expected-error{{ISO C++ forbids forward references to 'enum' types}}