From: Robert Hoehne <Robert DOT Hoehne AT Mathematik DOT TU-Chemnitz DOT DE>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Bit-wise compare
Date: Tue, 22 Jul 1997 11:23:15 +0200
Organization: TU Chemnitz-Zwickau
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Isaac Waldron wrote:
> 
> int has_item(int a, int b)
> {
>         if (a && b)
should be:
          if (a & b)


> int main()
> {
>         int a, b, c, d;
>         a = a || WEAPON_SWORD_1;
>         b = b || WEAPON_SWORD_2;
should be:
          a = a | WEAPON_SWORD_1;
          b = b | WEAPON_SWORD_2;

In general you have to distinguish the operators
&& and & (the same for || and | and so on). May be
you come from a pascal background where these operators
are the same, but in C there is a differnce between
the comparing oerators (which have the symbol twice) and
the logical bit operators (which have the symbol alone).

Robert
-- 
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* Robert Hoehne, Fakultaet fuer Mathematik, TU-Chemnitz-Zwickau *
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