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    SubjectRe: macro conflict
    Date
    From: "Andrew Cannon" <ajc@gmx.net>
    >
    > What about this then:
    >
    > #define min(x,y) ({typeof(x) __x=(x); typeof(y) __y=(y); (__x < __y) ?
    > __x : __y})
    >
    > This is guaranteed to work the same as the old min/max in all cases but
    > without side effects. You can still force the comparison to be done with
    > a certain type by casting the arguments first:
    >
    [snip]

    Well it's closer but not really what i want.
    The min/max_type is maybe the way to go, but the above can still bit you if
    the types differ. Consider max().

    char lut[256];
    int c1 = 256+rand()%256;
    char c2 = rand()%256;
    char dest = lut[max(c2,c1)];

    Won't c1 still be returned untruncated?

    Ofcourse one will use another construct for these kinds of checks, but maybe
    your brain collapses just for a second and think that this will return a
    char.

    OK ok bad example, but maybe you see that i have a point here somewhere
    (under my chair? :) ).

    Magnus

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    Programmer/Networker [|] Magnus Naeslund
    PGP Key: http://www.genline.nu/mag_pgp.txt
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