clang/test/SemaCXX/enum-increment.cpp

17 строки
560 B
C++

// RUN: %clang_cc1 -fsyntax-only %s -verify
enum A { A1, A2, A3 };
void test() {
A a;
a++; // expected-error{{cannot increment expression of enum type 'A'}}
a--; // expected-error{{cannot decrement expression of enum type 'A'}}
++a; // expected-error{{cannot increment expression of enum type 'A'}}
--a; // expected-error{{cannot decrement expression of enum type 'A'}}
}
enum B {B1, B2};
inline B &operator++ (B &b) { b = B((int)b+1); return b; }
inline B operator++ (B &b, int) { B ret = b; ++b; return b; }
void foo(enum B b) { ++b; b++; }