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how to swap

how to swap the 2 bytes..B1 and B2(16 bits)..without using shift operator.
Jan 9 '07 #1
4 1995
Banfa
9,065 Expert Mod 8TB
how to swap the 2 bytes..B1 and B2(16 bits)..without using shift operator.
This sounds like a homework question (I can think of no other reason not to use the shift operator).

Consider what happens to the value of a variable when it is shifted left or right

what is

16 >> 3
2 << 2

What does a left or right shift of 1 bit do to a value?

Does this suggest 2 alternate operators you could use for left and right shift.
Jan 9 '07 #2
hey man..its not home work problem..this question was asked in one of the interview..i know how to do with shift operator ..but i don't know how to do it without shift operator.
Jan 10 '07 #3
Banfa
9,065 Expert Mod 8TB
well like I said what does a left (or right) shift by 1 actually do to the value of the variable?

Answer that question and it should become obvious what operator you can use instead.
Jan 10 '07 #4
Hai

x << y is equivalent to x*(2 to the pow of y)

and x >> y is equivalent to the x/(2 to the pow of y)


BY using the above equation u can achive...
Jan 10 '07 #5

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