Re: [PATCH] Use NULL instead of integer 0 in security/selinux/

[Olaf Titz <olaf@bigred.inka.de>]

> 	struct foo {
> 		int a;
> 		int b;
> 	};
>
> then sparse is perfectly happy with someone clearing out a struct foo
> like this:
>
> 	struct foo bar = { 0 };
>
> but then if someone changes struct foo to be
>
> 	struct foo {
> 		void *x;
> 		int a;
> 		int b;
> 	};
>
> sparse will complain about that initialization, and all of the fixes

It complains rather rightly. Think what happens if the original
initializer was
   struct foo bar = { 1 };

This ambiguity may well be the main reason for the C99 initializer
syntax.

Olaf