On Wed, Jun 07, 2006 at 09:50:06PM +1000, Bojan Smojver wrote:
> On Wed, 2006-06-07 at 12:44 +0100, Joe Orton wrote:
>
> > Another useful thing that can be done in general is to do e.g.
> >
> > static apr_status_t blah(void *data)
> > {
> > char *foo = data;
> > the_function(foo)
> >
> > since passing a variable of the right type to the function rather than
> > just void * gives better type-safety.
>
> Is this something that inherent in C spec, or is it something that some
> compilers tend to screw up?
Oh, it's just that you get type-checking against the argument you pass
to the_function. If you pass a "void *" there is (essentially) no type
safety. e.g. a stupid example, if the_function() was changed to take an
"int *" above, you'd get a type warning. If you only passed the "void
*", you wouldn't.
This is not really a concern with use of sqlite2, but I think it's a
good idea in general ;)
Regards,
joe
