Iterators and auto keyword

#1

i want to know that what in IT iterator why is it returning address
when auto keyword is used
whereas when we use int keyword it returns value and not address

#2

@asaraf2407 hey iterators point to location of variable and return adress.The auto keyword is simply asking the compiler to deduce the type of the variable from the initialization.

Even a pre-C++0x compiler knows what the type of an (initialization) expression is, and more often than not, you can see that type in error messages.

#include
#include
using namespace std;

int main()
{
vectors;
s.push_back(11);
s.push_back(22);
s.push_back(33);
s.push_back(55);
for (int it=s.begin();it!=s.end();it++){
cout<<*it<<endl;
}
}

Line 12: error: cannot convert ‘__gnu_debug::_Safe_iterator<__gnu_cxx::__normal_iterator<int*, __gnu_norm::vector<int, std::allocator > >, __gnu_debug_def::vector<int, std::allocator > >’ to ‘int’ in initialization
The auto keyword simply allows you to take advantage of this knowledge - if you (compiler) know the right type, just choose for me!