loop1.hpp

C++_Templates这本书的随书源码

/* 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.
 */
#ifndef LOOP1_HPP
#define LOOP1_HPP

template <typename T>
inline T dot_product (int dim, T* a, T* b)
{
    T result = T();
    for (int i=0; i<dim; ++i) { 
        result += a[i]*b[i];
    }
    return result;
}

#endif // LOOP1_HPP