Division problem with Lattice C

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Article #1598

#1598

From: Opstad.osbunorth
Date: Sun, 24 Aug 1986 18:52

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1079 bytes

  I discovered this little problem while writing a prime factorization
program. Consider the following fragment:
  
  unsigned long i;
  i = 16777216L;
  printf("%ld\n", i);
  i /= 2;
  printf("%ld\n", i);
  
  Imagine my surprise when the same number is printed by both printf
calls! When I changed the fourth line to:
  
  i >>= 1;
  
  the program worked fine and printed the correct results. Has anyone
else had problems with division using Lattice/Metacomco C? (I'm using
version 3.03.04)
  
  Dave Opstad (Opstad.osbunorth@Xerox.COM)

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!lll-crg!nike!ucbcad!ucbvax!Xerox.COM!Opstad.osbunorth
From: Opstad.osbunorth@Xerox.COM
Newsgroups: net.micro.atari16
Subject: Division problem with Lattice C
Message-ID: <860824-115320-1121@Xerox>
Date: Sun, 24-Aug-86 14:52:53 EDT
Article-I.D.: Xerox.860824-115320-1121
Posted: Sun Aug 24 14:52:53 1986
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