Error in -Wuninitialized? Should this be reported?

[Goswin von Brederlow <goswin-v-b at web dot de>]

Hi,

After spending the better part of the evening finding a bug caused by
an uninitialized pointer I would love to get a Warning about
uninitialized variables from g++ in cases like Foo, Bar and Baz below:

mrvn@frosties:~% cat foo.cc
class Foo {
        Foo() { }
        int *p;
};

class Bar {
        Bar() { *p = 1; }
        int *p;
};

class Baz {
        Baz() { }
        int get_p() { return *p; }
        int *p;
};

mrvn@frosties:~% g++ -g -O2 -W -Wall -Werror -Wuninitialized -c foo.cc

mrvn@frosties:~% g++ --version
g++ (Debian 4.3.2-1) 4.3.2
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.



In Foo the variable is just uninitialized, in Bar it is definetly used
uninitialized and in Baz it might be used uninitialized. Is there any
-W switch to make g++ detect such errors or is that a shortcomming of
-Wuninitialized?

MfG
        Goswin