C/C++ Option to Initialize Variables?

[Jeffrey Walton <noloader at gmail dot com>]

Hi All,

http://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html#C-Dialect-Options

Is there an option to initialize variables to known values in a C/C++ program?

My use case is 'debug' builds and finding use of uninitialized values
that get lucky by being 0 most of the time. For example:

void DoSomeithWithFoo(FOO** ppf) {
  if(ppf && *ppf == NULL) {
    *ppf = new FOO;
    ...
  }
}

FOO* p;
DoSomeithWithFoo(&p);

So I would like something that initializes to known, but non-NULL,
such as 0xCDCDCDCD or 0xFDFDFDFD (similar to Visual Studio behavior).

Jeff