mt5-manager/docs/publish/code/03_cpp.txt

int FindLast(const string text, const string what)
  {
   int pos = -1;
   int next = StringFind(text, what, 0);
   while(next >= 0)
     {
      pos = next;
      next = StringFind(text, what, next + 1);
     }
   return pos;
  }