You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
2.0 KiB
57 lines
2.0 KiB
4 months ago
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -fsyntax-only -verify %s
|
||
|
|
template<typename T> int force_same(T, T);
|
||
|
|
|
||
|
|
// C++ [dcl.enum]p5:
|
||
|
|
// [...] If the underlying type is not fixed, the type of each enumerator is
|
||
|
|
// the type of its initializing value:
|
||
|
|
// - If an initializer is specified for an enumerator, the initializing
|
||
|
|
// value has the same type as the expression.
|
||
|
|
enum Bullet1 {
|
||
|
|
Bullet1Val1 = 'a',
|
||
|
|
Bullet1Val2 = 10u,
|
||
|
|
Bullet1Val1IsChar = sizeof(force_same(Bullet1Val1, char(0))),
|
||
|
|
Bullet1Val2IsUnsigned = sizeof(force_same(Bullet1Val2, unsigned(0)))
|
||
|
|
};
|
||
|
|
|
||
|
|
// - If no initializer is specified for the first enumerator, the
|
||
|
|
// initializing value has an unspecified integral type.
|
||
|
|
enum Bullet2 {
|
||
|
|
Bullet2Val,
|
||
|
|
Bullet2ValIsInt = sizeof(force_same(Bullet2Val, int(0)))
|
||
|
|
};
|
||
|
|
|
||
|
|
// - Otherwise the type of the initializing value is the same as the type
|
||
|
|
// of the initializing value of the preceding enumerator unless the
|
||
|
|
// incremented value is not representable in that type, in which case the
|
||
|
|
// type is an unspecified integral type sufficient to contain the
|
||
|
|
// incremented value. If no such type exists, the program is ill-formed.
|
||
|
|
enum Bullet3a {
|
||
|
|
Bullet3aVal1 = 17,
|
||
|
|
Bullet3aVal2,
|
||
|
|
Bullet3aVal2IsInt = sizeof(force_same(Bullet3aVal2, int(0))),
|
||
|
|
Bullet3aVal3 = 2147483647,
|
||
|
|
Bullet3aVal3IsInt = sizeof(force_same(Bullet3aVal3, int(0))),
|
||
|
|
Bullet3aVal4,
|
||
|
|
Bullet3aVal4IsUnsigned = sizeof(force_same(Bullet3aVal4, 0ul))
|
||
|
|
};
|
||
|
|
|
||
|
|
enum Bullet3b {
|
||
|
|
Bullet3bVal1 = 17u,
|
||
|
|
Bullet3bVal2,
|
||
|
|
Bullet3bVal2IsInt = sizeof(force_same(Bullet3bVal2, 0u)),
|
||
|
|
Bullet3bVal3 = 2147483647u,
|
||
|
|
Bullet3bVal3IsInt = sizeof(force_same(Bullet3bVal3, 0u)),
|
||
|
|
Bullet3bVal4,
|
||
|
|
Bullet3bVal4IsUnsigned = sizeof(force_same(Bullet3bVal4, 0ul))
|
||
|
|
};
|
||
|
|
|
||
|
|
enum Bullet3c {
|
||
|
|
Bullet3cVal1 = 0xFFFFFFFFFFFFFFFEull,
|
||
|
|
Bullet3cVal2,
|
||
|
|
Bullet3cVal3 // expected-warning{{not representable}}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Following the closing brace of an enum-specifier, each enumerator has the
|
||
|
|
// type of its enumeration.
|
||
|
|
int array0[sizeof(force_same(Bullet3bVal3, Bullet3b(0)))? 1 : -1];
|