Hi suresh, You're probably thinking of the statement as an equality statement. It's actually an assignment statement, in which the inverse of x is assigned to x. Now, if the statement read: x == ~x then it would always be false (except when x = 0?) Hope this helps, Paul Villangca
Joined: Jul 30, 2001
Hi Jamal 1. 6(10) = 00000...0110(2) - 32 bits 2. ~6(10) = 11111...1001(2) = -7(10) 3. x = ~6 = -7 In line 2 what is -7(10) and how x = ~6 is valid again. Please explain. Sorry for not getting this bit manipulation into my mind very well.
Joined: Jun 06, 2002
Now, if the statement read: x == ~x then it would always be false (except when x = 0?)
x==~x can never be true for any value of x. In particular, ~0 == -1.
Well... dunno: -x is ~x+1 so ~x is -(1+x); so x = ~x, can be written x = -(1+x). Therefore 2x = -1, giving x = -0.5 -Barry B.Sc Maths(Hons) [always wanted to write that ] [ August 14, 2002: Message edited by: Barry Gaunt ]