auto& in c++
Use auto && for the ability to modify and discard values of the sequence within the loop. (That is, unless the container provides a read-only view, such as std::initializer_list, in which case it will be effectively an auto const &.)
Use auto & to modify the values of the sequence in a meaningful way.
Use auto const & for read-only access.
Use auto to work with (modifiable) copies.auto in cpp
#include<iostream>
#incllude<vector>
using namespace std;
int main() {
vector<int> vec(10); // Auto deduce type to be iterator of a vector of ints.
for(auto it = vec.begin(); it != vec.end(); vec ++)
{
cin >> *it;
}
return 0;
}Copyright © 2021 Codeinu
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