[BLACKBOX] Trap 0 when compiling LSH and ROT

From: [at]} <CFB>
Date: Thu, 3 Jan 2008 14:32:36 +1030

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The following sample code results in a trap 0 when attempting to compile
with BB 1.6rc5:

MODULE TestShift;

IMPORT
  SYSTEM;
        
VAR
  int: INTEGER;
  long: LONGINT;
        
BEGIN
  int := 1;
  long := 2;
  int := SYSTEM.LSH(int, long)
END TestShift.

(The same problem occurs with SYSTEM.ROT)

I acknowledge that the code is invalid (the second parameter should not be a
LONGINT). However, a trap rather than a compiler error message makes it
difficult to locate the problem as it is not immediately obvious which line
of your own source code is causing the problem.

Regards,

Chris Burrows
CFB Software
http://www.cfbsoftware.com/gpcp

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Received on Thu Jan 03 2008 - 05:02:36 UTC