On Wed, Feb 10, 2010 at 10:10:31PM -0800, Brian Lavender wrote:
> I guess in C, you can't overload a function?
<snip>
You could use "...", like prinf() and scanf() use. ;)
What I end up doing (and have seen other C-based APIs do) is
something like this:
void oldfunction(type1 arg1)
{ ...some code... }
oops, I need two args! Rewrite time!
void newfunction(type1 arg1, type2 arg2)
{ ...some code... }
void oldfunction(type1 arg1)
{
newfunction(arg1, somedefault);
}
So now, anything that used oldfunction() still works as-is
(API didn't change), but if I need the additional arguments,
I can call the newer function (which really started life as
a rename of the old function, then had some code added to it).
It's kind of lame. I do appreciate PHP letting me only
send args I need to, and providing defaults when declaring
the function. e.g.:
function getsomething($what, $how_many_days_ago = 7)
{ ... some code ...}
I can call it as:
$thisweek = getsomething("cookies");
$today = getsomething("cookies", 1);
This also means the default can change w/o the callers caring.
(Good or bad, depending ;) )
Rambling, sorry :)
-bill!
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