Mega Code Archive
Computing sum with template arrays for vector
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#include <iostream>
#include <vector>
using std::cout;
using std::endl;
using std::vector;
template <typename Array>
double vectorSum(Array a, long count) { // Array can be a pointer or an iterator
double sum = 0.0;
for (long i = 0; i<count; ++i)
sum += a[i];
return sum;
}
int main() {
vector<int> sunny;
sunny.push_back(7);
sunny.push_back(12);
sunny.push_back(15);
cout << sunny.size() << " months on record" << endl;
cout << "vectorSum number of sunny days: ";
cout << vectorSum(sunny.begin(), sunny.end() - sunny.begin()) << endl;
return 0;
}
/*
3 months on record
vectorSum number of sunny days: 34
*/
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