/*** Prints Data on C/C++ data types ***/
/*** Also an example of a simple macro***/
/*
 *	PROBLEM
 *	How are integers etc stored on my computer?
 *	
 *	ANALYSIS
 *	Use the ready made "sizeof" function and libraries to
 *	print out sizezs, limits, etc...
 *	
 *	DESIGN
 *	
 *		Print
 *		Information
 *	           |
 *	  ----------------
 *	 |        |       |
 *	Print	Print	Print
 *	Sizes	Limits	Floats
 *	
 */

#define	BAR	cout <<"\n----------------------------"
// The above is a "macro" (page 331).  Just so you've seen one.

#include <iostream.h>
#include <limits.h>
#include <float.h>

int main()
{
	void print_sizes();
	void print_limits();
	void print_floats();

	print_sizes();
	print_limits();
	print_floats();

	cout <<"\n\n";
	return 0;
}

void print_sizes()// Taken from Kernigan and Ritchie many years ago
{
	cout <<"\nData Type "<< "Size in Bytes";
	BAR;
	cout <<"\n    char  "<< sizeof(char);
	cout <<"\n   short  "<< sizeof(short);
	cout <<"\n     int  "<< sizeof(int);
	cout <<"\n    long  "<< sizeof(long);
	cout <<"\nunsigned  "<< sizeof(unsigned);
	cout <<"\n   float  "<< sizeof(float);
	cout <<"\n  double  "<< sizeof(double);
	cout <<"\nl double  "<< sizeof(long double);
	BAR;
}

void print_limits()// Based on Table 7.1, page 335, Friedman & Koffman
{
	cout <<"\nInfo in <limits.h>";
	cout<<"\nCHAR_BIT    = "<<CHAR_BIT;
	cout<<"\nINT_MAX     = "<<INT_MAX ;
	cout<<"\nINT_MIN     = "<<INT_MIN ;  //Some computers give wierd answer
	cout<<"\n1+INT_MIN   = "<<1+INT_MIN ;//I think this is a Gnu CC bug
	cout<<"\nLONG_MAX    = "<<LONG_MAX;
	cout<<"\nLONG_MIN    = "<<LONG_MIN;
	cout<<"\nSHRT_MAX    = "<<SHRT_MAX;
	cout<<"\nSHRT_MIN    = "<<SHRT_MIN;
	BAR;

	return;//to main program
}
void print_floats()// Based on Table 7.1, page 336, Friedman & Koffman
{
	cout <<"\nInfo in <float.h>";
	cout<<"\nSTUB        = "<<"Stub";
	BAR;

	return;//to main program
}