
stddef.h
   typedef unsigned int size_t;

stdlib.h
/* n is the largest possible randomly generated number 
*/
   #define RAND_MAX  n

limits.h
/* n is the largest possible value for an int variable 
*/
   #define UINT_MAX  n

float.h
/* n is the largest possible value for a double variable 
*/
   #define DBL_MAX   n

string.h
   extern char  *strdup();
   extern int   strcmp();

