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From: gtchen@faline.bellcore.com (George T. Chen)
Newsgroups: comp.lang.c,comp.sys.mac
Subject: Long integers
Message-ID: <1380@faline.bellcore.com>
Date: Fri, 11-Sep-87 09:38:59 EDT
Article-I.D.: faline.1380
Posted: Fri Sep 11 09:38:59 1987
Date-Received: Sat, 12-Sep-87 17:35:56 EDT
Reply-To: gtchen@faline.UUCP (George T. Chen)
Organization: Bellcore MRE
Lines: 43
Xref: mnetor comp.lang.c:4275 comp.sys.mac:6623

Has anyone had this problem?

...
   void get_value(size)
   long *size;
   {   ...(do some processing)...
       printf("%ld",*size);
   }

   void routine()
   {   ...(some declarations)...
       long size;
       ...(some other stuff)....
       get_value(&size);
       printf("%ld",size);
   }

This routine dies on me!  (Well not dies but doesn't work)  For some
reason, size is correct in the get_value routine, but seems to be
int(size/256.)*256 in the calling routine.  Almost as if the least
significant byte became 0.  However, if I now change routine to

   void routine()
   {   ...(same declarations)...
       long garbage,size;
       ...(same other stuff)....
       get_value(&size);
       printf("%ld",size);
       garbage = 0;	/* So that garbage is allocated memory instead */
			/* of being ignored by the compiler */
   }

then everything works fine and dandy.  What's going on?  Someone told
me it might be a problem with odd and even bytes, but I don't quite
understand that.  All help appreciated.



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