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    SubjectRe: RFC: booleans and the kernel
    Timothy Covell wrote:
    > On Thursday 24 January 2002 14:39, Oliver Xymoron wrote:
    > >
    > > The compiler _will_ turn if(a==0) into a test of a with itself rather than
    > > a comparison against a constant. Since PDP days, no doubt.
    > I thought that the whole point of booleans was to stop silly errors
    > like
    > if ( x = 1 )
    > {
    > printf ("\nX is true\n");
    > }
    > else
    > {
    > # we never get here...
    > }

    Booleans won't help that. If you _want_ to fix that, change
    the assignment operator so it don't look like a comparison.
    Perhaps x <- 45; or something. Won't happen to C of course.

    Oh, and writing if (a=b) is valid way of testing for a non-zero
    b while also assigning to a. I write code that way when I
    need such a set of operation. Short, elegant, and no, it isn't
    hard to read at all.

    Helge Hafting
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