This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 115e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2024-11-11
[Moved to DR at 10/01 meeting.]
The example in 6.5.3 [basic.lookup.unqual] paragraph 3 is incorrect:
typedef int f;
struct A {
friend void f(A &);
operator int();
void g(A a) {
f(a);
}
};
Regardless of the resolution of other issues concerning the lookup
of names in friend declarations, this example is ill-formed
(the function and the typedef cannot exist in the same scope).
One possible repair of the example would be to make f a class with a constructor taking either A or int as its parameter.
(See also issues 95, 136, 138, 143, 165, and 166.)
Proposed resolution (04/01):
Change the example in 6.5.3 [basic.lookup.unqual] paragraph 3 to read:
typedef int f;
namespace N {
struct A {
friend int f(A &);
operator int();
void g(A a) {
int i = f(a);
// f is the typedef, not the friend function:
// equivalent to int(a)
}
};
}
Delete the sentence immediately following the example:
The expression f(a) is a cast-expression equivalent to int(a).