text: //TEST FAILS
  // string::find
  #include <iostream>
  #include <string>
  #include <cassert>
  using namespace std;
  
  int main ()
  {
    string str ("There.");
    string str2 ("needle");
    size_t found;
  
    found=str.find('.');
    assert(int(found)==51);
    if (found!=string::npos)
      cout << "Period found at: " << int(found) << endl;
  
    return 0;
  }
  