Andries Brouwer <aeb@veritas.com> wrote:
>
> int foo = 0; /* just for gcc */
> when the initialization in fact is not necessary.
Only for non-static foo.
> It is a bad programming habit to depend on this zero initialization.
> Indeed, very often, when you have a program that does something
> you need to change it so that it does that thing a number of times.
> Well, put a for- or while-loop around it. But wait! The second time
> through the loop certain variables need to be reinitialized. Which ones?
> The ones that were initialized explicitly in your first program.
> Make the program into a function in a larger one. Same story.
Again, this only applies to non-static variables. For static ones, they're
initialised once only even when they go out of scope.
> Saving a byte in the binary image is not very interesting.
> Preserving information about the program is important.
No information is lost.
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