[Bug c++/11497] New: const instance of class requires ctor definition

[frank6thursday at aol dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11497

           Summary: const instance of class requires ctor definition
           Product: gcc
           Version: 3.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: frank6thursday at aol dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: GNU C++ version 3.2.1 (i686-pc-linux-gnu)
  GCC host triplet: GNU C++ version 3.2.1 (i686-pc-linux-gnu)
GCC target triplet: GNU C++ version 3.2.1 (i686-pc-linux-gnu)

A const instance of a class requires that the class has a constructor defined. 
The default constructor is not accepted.  The following code will not compile:

test.cpp
--------
struct A{};
int main(){
   const A a;
}

The following error is generated:

test.cpp: In function `int main()':
test.cpp:7: uninitialized const `a'

However the following code will compile:

test.cpp
--------
struct A
{
  A(){}
};
int main(){
   const A a;
}

This also did not work using GNU C++ version 2.96 20000731 (Red Hat Linux 7.1
2.96-98)

Perhaps this is related to issue #5650?