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/**********************************************************

 * Aceasta aplicatie afiseaza informatia despre tipurile  *

 * de date primitive in C/C++.                            *

 * Scopul este de a vedea proprietatile tipurilor de date * 

 * simple in mediul in care este compilata aplicatia.     *

 *                                                        *

 *          Autor: Dumitru Uzun (DUzun) 2008              * 

 *              www.duzun.teologie.net                    *

 **********************************************************/

#include <stdio.h>

#include <conio.h>

#include <iostream.h>

​

#define show(x) cout<<#x":   \t"<<"sizeof "#x"\t= "<<sizeof(x)<<" bytes "<<"\t= "<<(sizeof(x)<<3)<<" bits,\t"<<(x)<<endl

void show_types(void);

​

void main(void){

​

   clrscr();

   show_types();

​

        float    f;

        double   d;

   long double  ld;

​

   ld = 1.2345;

   d  = 12.345;

   f  = 123.45;

   printf("\n%Lf", ld);

   printf("\n%f" , d );

   printf("\n%f" , f );

​

   getch();

};

​

void show_types(void)

{

   unsigned char      u_char   = -1;

            char       _char   = -1;

   unsigned short int u_short  = -1;

      short int        _short  = -1;

   unsigned long int  u_long   = -1;

            long int   _long   = -1;

            float      _float  = -1;

            double     _double = -1;

       long double    l_double = -1;

            int        _int    = -1;

            void*      _void   =  0;

            enum tenum _enum   = -1;

​

   cout << endl << " - Compiler independent data types:" << endl;

   show(u_char  );

   show( _char  );

   show(u_short );

   show( _short );

   show(u_long  );

   show( _long  );

   show( _float );

   show( _double);

   show(l_double);

​

   cout << endl << " - Compiler dependent data types:" << endl;

   show( _int   );

   show( _void  );

   show( _enum  );

};

​

​