source: tests/zombies/vector-perf/iteration-perf.cpp @ 9939dc3

#include <vector>
#include <iostream>
#include <time.h>

enum { NumElements = 10000, NumReps = 50000 };

int main() {
    clock_t start, end;
    std::vector<float> x;
    for (int i = 0; i < NumElements; i++) {
        x.push_back(0.1f * i);
    }
    float total;
    start = clock();
    for (int rep = 0; rep < NumReps; rep++) {
        total = 0;
        for( std::vector<float>::iterator it = x.begin(); it < x.end(); it ++ ) {
            total += *it;
        }
    }
    end = clock();
    std::cout << "last total was " << total << std::endl;
    double elapsed = ((double) (end - start)) / CLOCKS_PER_SEC; \
    std::cout << "iterating duration was " << elapsed << std::endl;
}