Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Function template evaluate

boost::yap::evaluate

// In header: <boost/yap/algorithm.hpp>


template<typename Expr, typename... T> 
  constexpr decltype(auto) evaluate(Expr && expr, T &&... t);

Evaluates expr using the built-in semantics, replacing any placeholders with the given values.

	Note
	`evaluate(expr)` is only valid if expr is an expression.