STLAlgorithmExtensions/EqualAlgorithm

template <class InputIterator1, class InputIterator2>
bool equal(InputIterator1 first1, InputIterator1 last1,
           InputIterator2 first2, InputIterator2 last2);

template <class InputIterator1, class InputIterator2, class BinaryPredicate>
bool equal(InputIterator1 first1, InputIterator1 last1,
           InputIterator2 first2, InputIterator2 last2,
           BinaryPredicate binary_pred);

Question (Pavol Droba) ?

This algorithm is needed by the string_algo library. Because it is missing now, it will be implemented there. Should it be provided as public, or it will be provided by some other lib?

Personally I often need something like 'prefix', it returns wether or not the first sequence is a prefix of the second.