forked from OSchip/llvm-project
113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -pedantic -std=c++98 -verify -triple x86_64-apple-darwin %s
|
|
// RUN: %clang_cc1 -fsyntax-only -pedantic -std=c++11 -verify -triple x86_64-apple-darwin %s
|
|
enum E { // expected-note{{previous definition is here}}
|
|
Val1,
|
|
Val2
|
|
};
|
|
|
|
enum E; // expected-warning{{redeclaration of already-defined enum 'E' is a GNU extension}}
|
|
|
|
int& enumerator_type(int);
|
|
float& enumerator_type(E);
|
|
|
|
void f() {
|
|
E e = Val1;
|
|
float& fr = enumerator_type(Val2);
|
|
}
|
|
|
|
// <rdar://problem/6502934>
|
|
typedef enum Foo {
|
|
A = 0,
|
|
B = 1
|
|
} Foo;
|
|
|
|
void bar() {
|
|
Foo myvar = A;
|
|
myvar = B;
|
|
}
|
|
|
|
/// PR3688
|
|
struct s1 {
|
|
enum e1 (*bar)(void); // expected-error{{ISO C++ forbids forward references to 'enum' types}}
|
|
};
|
|
|
|
enum e1 { YES, NO };
|
|
|
|
static enum e1 badfunc(struct s1 *q) {
|
|
return q->bar();
|
|
}
|
|
|
|
enum e2; // expected-error{{ISO C++ forbids forward references to 'enum' types}}
|
|
|
|
namespace test1 {
|
|
template <class A, class B> struct is_same { static const int value = -1; };
|
|
template <class A> struct is_same<A,A> { static const int value = 1; };
|
|
|
|
enum enum0 { v0 };
|
|
int test0[is_same<__typeof(+v0), int>::value];
|
|
|
|
enum enum1 { v1 = __INT_MAX__ };
|
|
int test1[is_same<__typeof(+v1), int>::value];
|
|
|
|
enum enum2 { v2 = __INT_MAX__ * 2U };
|
|
int test2[is_same<__typeof(+v2), unsigned int>::value];
|
|
|
|
enum enum3 { v3 = __LONG_MAX__ };
|
|
int test3[is_same<__typeof(+v3), long>::value];
|
|
|
|
enum enum4 { v4 = __LONG_MAX__ * 2UL };
|
|
int test4[is_same<__typeof(+v4), unsigned long>::value];
|
|
}
|
|
|
|
// PR6061
|
|
namespace PR6061 {
|
|
struct A { enum { id }; };
|
|
struct B { enum { id }; };
|
|
|
|
struct C : public A, public B
|
|
{
|
|
enum { id };
|
|
};
|
|
}
|
|
|
|
namespace Conditional {
|
|
enum a { A }; a x(const enum a x) { return 1?x:A; }
|
|
}
|
|
|
|
namespace PR7051 {
|
|
enum E { e0 };
|
|
void f() {
|
|
E e;
|
|
e = 1; // expected-error{{assigning to 'PR7051::E' from incompatible type 'int'}}
|
|
e |= 1; // expected-error{{assigning to 'PR7051::E' from incompatible type 'int'}}
|
|
}
|
|
}
|
|
|
|
// PR7466
|
|
enum { }; // expected-warning{{declaration does not declare anything}}
|
|
typedef enum { }; // expected-warning{{typedef requires a name}}
|
|
|
|
// PR7921
|
|
enum PR7921E {
|
|
PR7921V = (PR7921E)(123)
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{expression is not an integral constant expression}}
|
|
#else
|
|
// expected-error@-4 {{must have integral or unscoped enumeration type}}
|
|
// FIXME: The above diagnostic isn't very good; we should instead complain about the type being incomplete.
|
|
#endif
|
|
};
|
|
|
|
void PR8089() {
|
|
enum E; // expected-error{{ISO C++ forbids forward references to 'enum' types}}
|
|
int a = (E)3; // expected-error{{cannot initialize a variable of type 'int' with an rvalue of type 'E'}}
|
|
}
|
|
|
|
// This is accepted as a GNU extension. In C++98, there was no provision for
|
|
// expressions with UB to be non-constant.
|
|
enum { overflow = 123456 * 234567 };
|
|
#if __cplusplus >= 201103L
|
|
// expected-warning@-2 {{not an integral constant expression}}
|
|
// expected-note@-3 {{value 28958703552 is outside the range of representable values}}
|
|
#endif
|