lopping over an array c++
for (int i = 0; i < arr.size(); ++i){
//use if we explicitly need the value of i
cout << i << ":\t" << arr[i] << endl;
}
for (int element : arr){
//modifying element will not affect the array
cout << element << endl;
}
for (int &element : arr){
//modifying element will affect the array
cout << element << endl;
}c++ loop through int array
#include <iostream>
#include <array>
int main()
{
int aNumbers[] = { 0, 1, 2, 3, 4, 5 };
int count = 0;
for (int aNumber : aNumbers)
{
std::cout << "Element "<< count << " : " << aNumber << std::endl;
count++;
}
}length of array c++
// array::size
#include <iostream>
#include <array>
int main ()
{
std::array<int,5> myints;
std::cout << "size of myints: " << myints.size() << std::endl;
std::cout << "sizeof(myints): " << sizeof(myints) << std::endl;
return 0;
}Copyright © 2021 Codeinu
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