Thread: Problems reading io pins as a group
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Unread 12-02-2004, 11:35
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Re: Problems reading io pins as a group
Quote:
Originally Posted by Rickertsen2
"&&" (logical and) ANDs the entire word at a time. (it will only be true if the two arguements are the same.)
11110000 && 11111111 = 00000000
10101010 && 10101010 = 11111111
I believe that is wrong - && returns 1 if both arguments are true (non-zero). This is because the logical and works on two boolean values, and returns a third. Anything except 0 is treated as true in C.