[Python-Dev] Compiler warnings

[Guido van Rossum]

On 1/31/06, Tim Peters <tim.peters at gmail.com> wrote:
> [Thomas Wouters]
> > Objects/longobject.c:655: warning: 'e' may be used uninitialized in this function
>
> Well, that's pretty bizarre.  There's _obviously_ no way to get to a
> reference to `e` without going through
>
>         x = _PyLong_AsScaledDouble(vv, &e);
>
> first.  That isn't a useful warning.

But how can the compiler know that it is an output-only argument?

--
--Guido van Rossum (home page: http://www.python.org/~guido/)