Mathias Bauer wrote:
Xu, Shenshen wrote:
Hello Everybody,
Could anybody tell me what is the meaning of the return value of
IMPL_LINK, I found some of the codes return 0L and few of the codes
return 1L, I wonder what the difference is ?
The meaning is that returning "0" means that the link wasn't executed
successfully while returning any other value means "success".
<nitpick>
Actually the return value is a matter of negotiation between caller and
callee - an implementation detail so to speak. In some case you might
find more values than 0 or 1. Think of a Link as an early version of
boost::bind, a safe function pointer.
</nitpick>
As in most cases nobody cared for the return value on the calling side
it's possible that also meanwhile nobody cares for it anymore on the
called side. :-)
Yes, that too :-)
Kind regards, pl
--
If you give someone a program, you will frustrate them for a day;
if you teach them how to program, you will frustrate them for a lifetime.
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