exprops4.hpp

C++ Templates 完全导引范例

/* The following code example is taken from the book
 * "C++ Templates - The Complete Guide"
 * by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
 *
 * (C) Copyright David Vandevoorde and Nicolai M. Josuttis 2002.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
template<typename T, typename R1, typename R2>
Array<T,A_Subscript<T,R1,R2> >
Array<T,R1>::operator[] (Array<T,R2> const & b) {
    return Array<T,A_Subscript<T,R1,R2> >
           (A_Subscript<T,R1,R2>(a.rep(),b.rep()));
}