[Bug c++/38870] New: G++ allows modification of data members for a non lvalue object

[stefan dot constantin at gmail dot com]

taking into account the following program
-------------------------------------------------
class tester {
public:
        int i;
        void foo() {}
};

int main()
{
        tester().foo();
        tester().i = 10;
        return 0;
}
-------------------------------------------------

The C++ standard (under 3.10.2 lvalues and rvalues) specifies that the result
from tester() is not an lvalue but implementations can invoke member functions
on the rvalue.
In this case tester().foo() is permitted, which is ok, but tester().i =
something should not be permitted since the implementation is only allowed to
invoke member functions.

Thank you,

Stefan Constantin


-- 
           Summary: G++ allows modification of data members for a non lvalue
                    object
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: stefan dot constantin at gmail dot com
 GCC build triplet: x86_64-redhat-linux
  GCC host triplet: x86_64-redhat-linux
GCC target triplet: x86_64-redhat-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38870