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Eli Friedman5f7157e2009-12-16 20:47:15 +00001// RUN: %clang_cc1 -fsyntax-only -pedantic -std=c++98 -verify -triple x86_64-apple-darwin %s
Douglas Gregor93afb0d2008-12-12 07:27:10 +00002enum E {
3 Val1,
4 Val2
5};
6
7int& enumerator_type(int);
8float& enumerator_type(E);
9
10void f() {
11 E e = Val1;
12 float& fr = enumerator_type(Val2);
13}
Douglas Gregor66b947f2009-01-16 19:38:23 +000014
15// <rdar://problem/6502934>
16typedef enum Foo {
Mike Stump1eb44332009-09-09 15:08:12 +000017 A = 0,
18 B = 1
Douglas Gregor66b947f2009-01-16 19:38:23 +000019} Foo;
Mike Stump1eb44332009-09-09 15:08:12 +000020
Douglas Gregor66b947f2009-01-16 19:38:23 +000021void bar() {
Mike Stump1eb44332009-09-09 15:08:12 +000022 Foo myvar = A;
23 myvar = B;
Douglas Gregor66b947f2009-01-16 19:38:23 +000024}
Douglas Gregor80711a22009-03-06 18:34:03 +000025
26/// PR3688
27struct s1 {
John McCall50234372009-12-04 00:07:04 +000028 enum e1 (*bar)(void); // expected-error{{ISO C++ forbids forward references to 'enum' types}}
Douglas Gregor80711a22009-03-06 18:34:03 +000029};
30
31enum e1 { YES, NO };
32
33static enum e1 badfunc(struct s1 *q) {
John McCall50234372009-12-04 00:07:04 +000034 return q->bar();
Douglas Gregor80711a22009-03-06 18:34:03 +000035}
36
37enum e2; // expected-error{{ISO C++ forbids forward references to 'enum' types}}
John McCall842aef82009-12-09 09:09:27 +000038
39namespace test1 {
40 template <class A, class B> struct is_same { static const int value = -1; };
41 template <class A> struct is_same<A,A> { static const int value = 1; };
42
43 enum enum0 { v0 };
Eli Friedman2aaad632009-12-16 20:30:08 +000044 int test0[is_same<__typeof(+v0), int>::value];
John McCall842aef82009-12-09 09:09:27 +000045
46 enum enum1 { v1 = __INT_MAX__ };
Eli Friedman2aaad632009-12-16 20:30:08 +000047 int test1[is_same<__typeof(+v1), int>::value];
John McCall842aef82009-12-09 09:09:27 +000048
49 enum enum2 { v2 = __INT_MAX__ * 2U };
Eli Friedman2aaad632009-12-16 20:30:08 +000050 int test2[is_same<__typeof(+v2), unsigned int>::value];
John McCall842aef82009-12-09 09:09:27 +000051
Eli Friedman2aaad632009-12-16 20:30:08 +000052 enum enum3 { v3 = __LONG_MAX__ };
53 int test3[is_same<__typeof(+v3), long>::value];
John McCall842aef82009-12-09 09:09:27 +000054
Eli Friedman2aaad632009-12-16 20:30:08 +000055 enum enum4 { v4 = __LONG_MAX__ * 2UL };
56 int test4[is_same<__typeof(+v4), unsigned long>::value];
John McCall842aef82009-12-09 09:09:27 +000057}
Douglas Gregore39fe722010-01-19 06:06:57 +000058
59// PR6061
60namespace PR6061 {
61 struct A { enum { id }; };
62 struct B { enum { id }; };
63
64 struct C : public A, public B
65 {
66 enum { id };
67 };
68}
Douglas Gregora873dfc2010-02-03 00:27:59 +000069
70namespace Conditional {
71 enum a { A }; a x(const enum a x) { return 1?x:A; }
72}
Douglas Gregor88623ad2010-05-23 21:53:47 +000073
74namespace PR7051 {
75 enum E { e0 };
76 void f() {
77 E e;
78 e = 1; // expected-error{{assigning to 'PR7051::E' from incompatible type 'int'}}
79 e |= 1; // expected-error{{assigning to 'PR7051::E' from incompatible type 'int'}}
80 }
81}