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Re: [Bug-gnubg] Imported Jellyfish File Problem (File)

From: Øystein O Johansen
Subject: Re: [Bug-gnubg] Imported Jellyfish File Problem (File)
Date: Mon, 6 Jan 2003 18:09:25 +0100

I can see what happens here, but I have not found a solution, yet.

static int
ApplySubMove( int anBoard[ 2 ][ 25 ],
              const int iSrc, const int nRoll,
              const int fCheckLegal ) {

    int iDest = iSrc - nRoll;

    if( fCheckLegal && ( nRoll < 1 || nRoll > 6 ) ) {
     /* Invalid dice roll */
     errno = EINVAL;
     return -1;

In ApplySubMove in eval.c, the above check returns -1. ApplySubMove was
called from ApplyMove which again was called from IsValidMove in import.c.
In the first appearence, 55: 13/3 13/3, the call to IsValidMove from
ParMatMove is called with a anMove array of {12, 2, 12, 2, -1,-1 ,0,  0}
(Yes, c = 2). This is a perfectly legal move. IsValidMove takes the same
array (actually a mem copied array) to ApplyMove. From ApplyMove to
ApplySubMove is then called with the integer numbers ApplySubMove( anBoard,
12, 12 - 2, TRUE);. Twelve minus two equals ten. This will in the above
check think that one of the dice was 10, which is outside the legal range 1
to 6.

Can anyone think of a neat way to solve this simple problem?


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