[boost] [Signals] Added disconnect() based on function object equivalence

From: Douglas Gregor (gregod_at_[hidden])
Date: 2004-03-10 00:56:27

Since we're discussing the issue, I've added an experimental disconnect() 
member function to signals that allows one to disconnect equivalent slots, 
e.g.,

void foo();
void bar();

signal<void()> sig;

sig.connect(&foo);
sig.connect(&bar);

sig.disconnect(&foo); // disconnects foo, but not bar

We could also reconsider the += and -= syntax, since support for -= now makes 
some sense.

        Doug