Comparing char* in C++ lexicographically

Question

I know that I can compare string by < > etc. but how to compare char* lexicographically?

Answer 1

Read here: std::lexicographical_compare() has two form

default (1):

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

custom (2):

template <class InputIterator1, class InputIterator2, class Compare>
  bool lexicographical_compare (InputIterator1 first1, InputIterator1 last1,
                                InputIterator2 first2, InputIterator2 last2,
                                Compare comp);

Lexicographical less-than comparison

Returns true if the range [first1,last1) compares lexicographically less than the range [first2,last2).