Is there a readable implementation of the STL? [closed]

Answer 1

Yes, there is original implementation of the STL by Alexander Stepanov and Meng Lee. It is the most readable STL implementation I have ever seen. You can download it from here.

Below is an implementation of pair. Note how readable the source code really was:

#include 

template 
struct pair {
    T1 first;
    T2 second;
    pair() {}
    pair(const T1& a, const T2& b) : first(a), second(b) {}
};

template 
inline bool operator==(const pair& x, const pair& y) { 
    return x.first == y.first && x.second == y.second; 
}

template 
inline bool operator<(const pair& x, const pair& y) { 
    return x.first < y.first || (!(y.first < x.first) && x.second < y.second); 
}

template 
inline pair make_pair(const T1& x, const T2& y) {
    return pair(x, y);
}

Back to the roots!