CString find the last entry

Question

I have two CString s1 and CString s2. I need find the last entry s2 in s1. I can find any metod in CString like in C# LastIndexOf. I am nooby in c++.

Answer 1

CString has no such function. You have to write it yourself, e.g.

int LastIndexOf(const CString& s1, const CString& s2)
  {
  int found = -1;
  int next_pos = 0;
  for (;;)
    {
    next_pos = s1.Find(s2, next_pos);
    if (next_pos == -1)
      return found;

    found = next_pos;
    };
  }

A more optimal algorithm would reverse the strings first, I'm leaving that as an exercise.