On Thu, Jul 22, 2010 at 8:43 PM, Isaac Marino Bavaresco <
isaacbavaresco@yahoo.com.br> wrote:

> No, automatic variables are not cleared upon function entry, they may
> contain garbage.
>

That's why you need to initialize all variables you have. Not sure about C1=
8
but some compilers throws warnings at compilation time about using
uninitialized variables. As a practise I found it easier to write "int myVa=
r
=3D 0;" as opposed to "int myVar;" so the initialization will not be forgot=
ten
-- however, sometimes it is only a way to suppress those warnings...

Tamas


Global variables are cleared to zero at program start, but some
> tool-chains support a switch
> to disable this feature.
>
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--=20
int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q;
printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }",
q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); }
--=20
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