Function template cond

boost::yap::cond

Synopsis

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


template<typename Expr> decltype(auto) cond(Expr && expr);

Returns the condition expression in an if_else expression.

Equivalent to get(expr, 0_c).

	Note
	`cond()` is only valid if Expr is an `expr_kind::if_else` expression.