C++ Vectors 👷🏼‍♂️👷🏼‍♀️

NOTE: ⚠ Work in progress ⚠ - Hard hats to be worn! 👷🏼‍♂️👷🏼‍♀️

#include <vector>

std::vector<int> my_ints;

Methods

at(index) - returns the vector at 'index' - throws an exception if index is out of range. size() - returns the number of elements in the vector. clear() - clears the structure of the vector at the end.

Iterating through vectors

The C++11 method

std::vector<SomeObject> vectors;
...

for(auto item : vectors) {
    // do something with item here
}

Using iterators

for(std::vector<T>::iterator it = v.begin(); it != v.end(); ++it) {
    // do something with item here
}