http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48582
Summary: Template non-type arguments doesn't accept null
pointer constant value
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: boost...@gmail.com
According to current C++0x draft 14.3.2 [temp.arg.nontype],
template non-type arguments can be a constant expression that evaluates to a
null pointer value or null member pointer value.
This change was made in n1905.
So the following code is well-formed.
template < void * = nullptr > void f() { }
int main()
{
f() ;
f<nullptr>() ;
f<0>() ;
constexpr void * ptr = nullptr ;
f<ptr>() ;
}
But current gcc does not accept it.
Or is this just unimplemented feature?
