for range loop with const& argument when the iterable itself is passed by a const& argument

If I pass a container by constant reference, is there a point in declaring a constant reference in a range-for loop, or will the elements in the loop automatically inherent that property?

i.e.

int foo(std::vector<int> const& vec) {
    for (int const& el : vec)
        // do something...
}

is the above equivalent to:

int foo(std::vector<int> const& vec) {
    for (int el : vec)
        // do something...
}