#include <iostream>
#include <vector>
#include <cstring>
#include <chrono>
using namespace std;
int main(int argc, char* argv[])
{
int trials = 0;
if(argc == 2)
{
trials = atoi(argv[1]);
}
int tab[1000000];
vector<int> vect;
for(int i = 0; i < 1000000; i++)
{
tab[i] = i + 3;
vect.push_back(i + 3);
}
auto start = chrono::steady_clock::now();
for(int j = 0; j < trials; j++)
{
tab[0] += trials;
memmove(tab, tab + 1, 1000000 - 2 - j);
}
auto end = chrono::steady_clock::now();
cout << "memcpy time in ms : "
<< chrono::duration_cast<chrono::milliseconds>(end - start).count()
<< endl;
start = chrono::steady_clock::now();
for(int j = 0; j < trials; j++)
{
vect[0] += trials;
vect.erase(vect.begin());
}
end = chrono::steady_clock::now();
cout << "vector.erase() time in ms : "
<< chrono::duration_cast<chrono::milliseconds>(end - start).count()
<< endl;
return 0;
}
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