Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!mcsun!ukc!mucs!cns!news
From: vanaards%t7@uk.ac.man.cs (vanaards)
Newsgroups: comp.sys.acorn
Subject: C compiler bug (ANSI mode)
Summary: Bug in struct
Keywords: Acorn C compiler version 3.00
Message-ID: <1991Feb22.123151.11136@cns.umist.ac.uk>
Date: 22 Feb 91 12:31:51 GMT
Sender: Steven van Aardt
Organization: Department of Computer Science, University of Manchester UK
Lines: 34


  
  I'm at the finishing stages of my finals project, and have come-across
a little problem, there doesn't appear to be anything wrong with the code
which uses this structure but by removing the 'padding' (int :32) the
program will cause the machine to hangup. The hangup occurs within a
particular function, but is irregular, even when tested under the same
test conditions, it hangs up at different points! 

Here's the structure :
                      
------------------------------------------------------------------------
typedef struct history_structure *HIST_PTR;

typedef struct history_structure {
  long int   vfrom;         
  char       *filename;     
  long int   from,to;       
  long int   lastpos;       
  HIST_PTR   next;
  int        :32;           /* Compiler bug ? */
  HIST_PTR   previous; 
} HIST_REC;
------------------------------------------------------------------------

Any ideas ?

+--------------------------------+-----------------------------------------+
|   ()()TEVEN         ()         |                                         |  
|  ()                ()()        |                                         |  
|   ()()   ()  ()AN ()  ()       |                                         |
|      ()   ()()   ()()()()      +-----------------------------------------+
|   ()()     ()   ()      ()ARDT |JANET E-mail : vanaards@uk.ac.man.cs.p4  |
+--------------------------------+-----------------------------------------+