floating point constants

[fieland at hobbiton.prime.com]

According to K. & R., if the second operand of the division operator
is zero, the result is undefined.  Therefore, the compiler is free
to do what it wants with this.


On a more practical note, the following program will cause the sun 386i 
cc compiler to print out Inf, -Inf, and -Nan: (sic)

/* This should print out
        inf
        -inf
        NaN
*/

main()
{float f1, f2, f3, f4 = 0;
	f1 = 1.0/f4;
	f2 = -1.0/f4;
	f3 = 0.0/f4;
	
        printf("%f\n",f1); 
        printf("%f\n", f2); 
	
        printf("%f\n", f3);
}




Peggy Fieland

fieland at primerd.prime.com