// finction defs to palindrome
// Walt Savitch
// 03/09/00

#include <iostream>
#include <string>
#include <cctype>

using std::string;

// returns true if string is palindrome
bool isPal(const string&);

// strips punctuation characters
string removePunct(const string&, const string& );

// lowers the case of parameter
string makeLower(const string& s); 


// returns a copy of arg corresponding to parameter 
// str with characters in reverse order.
string reverse(const string&);


// swaps the characters
void swap(char&, char&);