[Bug c++/36394] New: DR178: new non_POD() is handled incorrectly

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#178

This Defect report changes how () is handled.  It seems a bit weird but we
don't implement it.  We still implement the way as described in the standard
and do a default initializer and not a value initializer.

An example is:
  #include <stdio.h>

  void *gp;

  class Jim
  {
  public:
    int x[ 1000 ];
    Jim() {}
  };

  class Fred : public Jim
  {
  public:
    void *operator new( size_t size, char *my_name ) { Fred *pf = (Fred*)gp;
pf->message = my_name;  return (void*)pf; }
    char *message;
  };

  Fred *xxxx() { return new ( "fred" )Fred(); }

Here xxxx should zero both message and x instead of just calling the
constructor.  Now I don't know if makes sense any more.


-- 
           Summary: DR178: new non_POD() is handled incorrectly
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36394