/*
 * Copyright (c) 2002 by Cliff Green. All rights reserved. Individual files
 * may be covered by other copyrights (as noted in the file itself).
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this entire copyright notice is duplicated in all such
 * copies.
 *
 * This software is provided "as is" and without any expressed or implied
 * warranties, including, without limitation, the implied warranties of
 * merchantibility and fitness for any particular purpose.
*/
//----------------------------------------------------------------------
// Source file:   pal.h
// Written by:    Cliff Green, 2002
// Compiler:      Metrowerks CodeWarrior Pro 6, g++ 3.0.4
// History:
//   Modified:    Mar. 5, 2002
//   By:          Cliff Green
//   Comments:    Minor changes, mostly newer const declarations.
//----------------------------------------------------------------------
// This commentheader supports documentation tools such as Doc++ and
// Doxygen: http://www.doxygen.org/
//----------------------------------------------------------------------
/// PalCtr class, performs palindrome detection and counting.
/**
 *  Keeps track of how many palindromes have been detected
 *  by calling the isPalindrome method.
 *
 *  Pre-condition for isPalindrome - parameter is a valid pointer to
 *  a nul-char terminated C string (array of characters).
 *
 *  Pre-condition for strlen_alpha - same as isPalindrome.
 */

#ifndef PAL_H
#define PAL_H

// dtor, copy ctor, and assign op are defaulted
class PalCtr {
public:

   PalCtr() : mCnt(0) { }

   // ~PalCtr(); // implicit - generated by compiler if needed
   // PalCtr(PalCtr const& rhs); // implicit
   // PalCtr& operator=(PalCtr const& rhs); // implicit

   bool isPalindrome (char const* str);
   unsigned int getCnt() const { return mCnt; }

private:
   unsigned int mCnt;
};

int strlen_alpha (char const* str);

#endif