Question

I need to access the contents of a vector. The vector contains a structure and I need to loop through the vector and access the structure members.

How can I do that using a for loop and the vector iterator?

Answer 1

Either use iterators or []:

// assuming vector will store this type:
struct Stored {
    int Member;
};

//and will be declared like this:
std::vector<Stored> vec;

// here's how the traversal loop looks like with iterators
for( vector<Stored >::iterator it = vec.begin(); it != vec.end(); it++ ) {
   it->Member;
}

// here's how it looks with []
for( std::vector<Stored>::size_type index = 0; index < vec.size(); index++ ) {
   vec[index].Member;
}