Description

Defines operator overloads for the call operator taking any number of parameters ("operator()") that each produce an expression instantiated from the expr_template expression template. One overload is defined for each of the qualifiers const &, &, and &&. For the lvalue reference overloads, *this is captured by reference into the resulting expression. For the rvalue reference overload, *this is moved into the resulting expression.

The u parameters to each of the defined overloads may be any type, including an expression. Each non-expression is wrapped in a terminal expression.

Example: