Write a type int function strtoint and a type double function strtodouble that convert string representations of numbers to their numeric equivalents.

strtoint("-8") 8 strtodouble("-75.812") 75.812

Using diagrams similar to those in Fig. 9.1, show the specific problems that are generated by the following calls.

a. multiply(5, 4)

b. count('d', "dad")