Re: [ros-dev] Uninitialized static variable in function

[Ged Murphy]

You'll learn in due course that college lecturers are often wrong.


2011/3/20 Javier Agustìn Fernàndez Arroyo <elhoir(a)gmail.com>om>:
>   teachers at college told us it is a must to initialize
> variables.....
>
>  On Sun, Mar 20, 2011 at 10:53 AM, Dmitry Gorbachev <d.g.gorbachev(a)gmail.com>
>  wrote:
> >  
> >  Hi,
> >
> > >   please, initialize "i" to 0.
> > > Non-initialized variable store garbage,
> > >  not zeroes. 
> >  It probably does not look very well, but otherwise correct:
> >
> > >   If an object that has static storage duration is
> > > not initialized
> > >  explicitly, then:
> > >  — if it has pointer type, it is initialized to a null pointer;
> > >  — if it has arithmetic type, it is initialized to (positive or unsigned)
> > >  zero;
> > >  — if it is an aggregate, every member is initialized (recursively)
> > >  according to these rules;
> > >  — if it is a union, the first named member is initialized (recursively)
> > >  according to these rules. 
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