/* ECP: FILEname=fig9_30.c */
/* 1*/   /* To Add A New Shape                        */
/* 2*/   /* 1. Create Appropriate Header And Source   */
/* 3*/   /*        Read, Write, And Area Functions;   */
/* 4*/   /* 2. Update #include Statements Below;      */
/* 5*/   /* 3. Adjust typedef Shape                   */
/* 6*/  

/* 7*/   #include "circle.h"
/* 8*/   #include "square.h"
/* 9*/   #include "rectangle.h"


/*10*/   typedef struct
/*11*/   {
/*12*/       char *ShapeName;
/*13*/       ShapeType * ( *ReadShape )( void );
/*14*/       void ( *WriteShape )( const ShapeType *Shape );
/*15*/       void ( *Area )( ShapeType *Shape );
/*16*/   } ShapeSwitch;


/*17*/   static ShapeSwitch ShapeTable[ ] =
/*18*/   {
/*19*/       { "circle", ReadCircle, WriteCircle, AreaCircle },
/*20*/       { "rectangle", ReadRectangle, WriteRectangle, AreaRectangle },
/*21*/       { "square", ReadSquare, WriteSquare, AreaSquare },
/*22*/       { NULL, NULL, NULL, NULL }
/*23*/   };

/*24*/   #include <string.h>