Name: _____________________________

Honor Code Acknowledgment: ________________________

             Random Quiz # 10 
         CPS 08, Spring 1995
            March 3, 1995


Problem 1: Acch, ptooey

The function atoi in <stdlib.h> converts a string to an integer.
However, the value of atoi("dog") is 0.  Suppose that you don't have
access to <stdlib.h> so that you must write your own version of atoi.
Do this using the header below.  The function doesn't have to work with
negative numbers, but you get extra credit if it does.  The intOk
parameter is set to true if the string passed is a valid integer (all
digits) and is set to false if the string is NOT a valid integer.

Thus atoi("123",x,y) should result in x getting the value 123 and y
getting the value true; whereas atoi("12a3",z,w) should result in w
getting the value false (the value of z in this case can be anything).


    void atoi(String s,int & value, bool & intOK)
    // postcondition: value = integer represented by string s
    //                intOk = true if s represents a valid integer
    //                otherwise intOk = false