Re: [Boost-users] Testing a boost::signal

From: Igor R (boost.lists_at_[hidden])
Date: 2008-07-13 07:21:10

if (!sig.empty())
 doSomething();

But if you just want to "fire" your signal, you don't have to test its
emptiness.

2008/7/13, Simon Pickles <sipickles_at_[hidden]>:
> Hi,
>
> What  is the correct syntax to test whether a signal has any slots
> connected?
>
> boost::signal<void(void)> sig;
>
> if (sig)
>   DoSomething();
>
> This doesn't compile.
>
> Thanks
>
> Simon
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