[Bug libstdc++/48398] [4.6/4.7 Regression] [C++0x] std::unique_ptr<T, D> is broken when D::pointer is not T*
redi at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Apr 1 10:15:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48398
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.04.01 10:15:24
Target Milestone|--- |4.6.1
Summary|[C++0x] std::unique_ptr<T, |[4.6/4.7 Regression]
|D> is broken when |[C++0x] std::unique_ptr<T,
|D::pointer is not T* |D> is broken when
| |D::pointer is not T*
Ever Confirmed|0 |1
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-04-01 10:15:24 UTC ---
yes, the patch looks correct to me and should go on the 4.6 branch as it's a
regression caused by http://gcc.gnu.org/viewcvs?view=revision&revision=158682
when we started using deleter_type::pointer
Prior to that change this slight variation worked ok:
#include <memory>
#include <cassert>
struct my_deleter
{
typedef int* pointer;
void operator()( void* p ) {
delete static_cast<pointer>(p);
}
};
int main()
{
std::unique_ptr<void, my_deleter> p( new int() );
assert( p.get() != 0 ); // invalid conversion from 'void*' to 'int*'
p.reset(); // no matching function for call to 'swap( void*&, int*& )'
}
I won't be at home to test and commit it until tomorrow though
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