Mega Code Archive
Loop with generic parameter
<![CDATA[
/* 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.
*/
#include <iostream>
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;
}
int main()
{
int a[3] = { 1, 2, 3};
int b[3] = { 5, 6, 7};
std::cout << "dot_product(3,a,b) = " << dot_product(3,a,b)
<< '\n';
std::cout << "dot_product(3,a,a) = " << dot_product(3,a,a)
<< '\n';
}
dot_product(3,a,b) = 38
dot_product(3,a,a) = 14
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