[Bug c++/12341] New: Request for additional warning for variable shadowing

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

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12341

           Summary: Request for additional warning for variable shadowing
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bero at arklinux dot org
                CC: gcc-bugs at gcc dot gnu dot org

class A { 
public: 
        A() { } 
protected: 
        int aaa; 
}; 
 
class B:public A { 
public: 
        B():A() { } 
protected: 
        int aaa; 
}; 
 
compiles without a warning, and is a potential source of hard to trace problems 
(while it can, of course, be used intentionally). 
 
It may be useful to give a warning akin to the one given in the case of 
 
void blah(int a) 
{ 
	int a; 
}