c puzzle book basic type 2.c

bt2.c

#define PR(x)	printf("x = %.8g\t",(double)x)
#define NL	putchar('\n'):
#define PRINT4(x1,x2,x3,x4)     PR(x1); PR(x2); PR(x3); PR(x4)

void main(void)
{
        double d;
        float f;
        long l;
        int i;

        i = l = f = d = 100/3; PRINT4(i,l,f,d);         /* Basic Types 1.1 */
        d = f = l = i = 100/3; PRINT4(i,l,f,d);         /* Basic Types 2.1 */
        i = l = f = d = 100/3.; PRINT4(i,l,f,d);        /* Basic Types 2.2 */
        d = f = l = i = (double)100/3;
        PRINT4(i,l,f,d);                                /* Basic Types 2.4 */

        i = l = f = d = (double)(100000/3);
        PRINT4(i,l,f,d);                                /* Basic Types 2.5 */

        d = f = l = i = 100000/3; PRINT4(i,l,f,d);      /* Basic Types 2.6 */
}



/*
$ gcc bt2.c
bt2.c:7:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
    7 | main()
      | ^~~~~~
*/

bash

x = 33  x = 33  x = 33  x = 33  x = 33  x = 33  x = 33  x = 33  x = 33  x = 33  x = 33.333332   x = 33.333333   x = 33 x = 33   x = 33  x = 33  x = 33333       x = 33333       x = 33333       x = 33333       x = 33333       x = 33333      x = 33333        x = 33333