See also: function class reference.

Model of
Description

The function class can be used to apply a function to an incoming signal and output the result. function is a _modifier_ with the Modifier set to an adapter for the provided function.

Example 

signals::function<void (float), float(float)>
    double_fun1(boost::bind(std::multiplies<float>(), _1, 2.0f));
signals::function<void (float), float(float)>
    double_fun2(boost::bind(std::multiplies<float>(), _1, 2.0f));
signals::storage<void (float)> floater(1.0f);
signals::storage<void (float)> collector(0.0f);

floater >>= double_fun1 >>= double_fun2 >>= collector;
floater.send();

BOOST_CHECK_EQUAL(collector.at<0>(), 4.0f);