https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110690
Bug ID: 110690
Summary: invalid use of member 'S::m' in static member function
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: irip at qq dot com
Target Milestone: ---
Test Code:
struct S {
int m;
static void f_sizeof() { (void) sizeof(m); }
static void f_typeid() { (void) typeid(decltype(m)); }
struct N {
int m;
static void f_sizeof() { (void) sizeof(m); }
static void f_typeid() { (void) typeid(decltype(m)); }
};
template <class T> class C {
public:
int m;
static void f_sizeof() { (void) sizeof(m); }
static void f_typeid() { (void) typeid(decltype(m)); }
};
} s;
static void f_typeid() { (void) typeid(m); }
Compiler error:invalid use of member 'S::m' in static member function
The reason is that typeid's operand may or may not be an unevaluated operand,
so it is not known which one it is at parsing time
