Computing the Norm of a Vector - C++ template

C++ examples for template:template function

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Description

Computing the Norm of a Vector

Demo Code

#include <numeric>
#include <vector>

#include <cmath>
#include <iostream>

using namespace std;

template<typename Iter_T>
long double vectorNorm(Iter_T first, Iter_T last) {
  return sqrt(inner_product(first, last, first, 0.0L));
}

int main() {//from   w w  w  . j  a v a2s. c o m
  int v[] = { 3, 4 };
  cout << "The length of the vector (3,4) is ";
  cout << vectorNorm(v, v + 2) << endl;
}

Result


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