Path: utzoo!utgpu!watserv1!watmath!att!emory!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!bionet!crc.ac.uk!mbishop
From: mbishop@crc.ac.uk (Martin Bishop)
Newsgroups: bionet.software
Subject: Minor fasta infelicity
Message-ID: <12746.9101261447@crc.ac.uk>
Date: 26 Jan 91 14:47:43 GMT
Sender: daemon@genbank.bio.net
Lines: 25

I came across a problem with fasta when running against small datasets
when it is possible that there are no scores higher than the cutoff.
Its in fffasta.c in routine showbest() when bbp is a pointer to
NULL and then the next bit of code tries to print out the results.
I cured this as below:




/* This is the place where trouble occurs if no scores greater than cutoff! */
	else
	 $
if (bbp == NULL) return;
/*fprintf(stderr,"Heading for trouble\n");
fprintf(stderr,"(*bbp).score %d hcutoff %d\n",(*bbp).score,hcutoff);
fflush(stderr); */
		if ((bbp->score > (2*hcutoff)) ||
		(bbp->score > hcutoff && bbp->gscore > (4*bbp->score/3)))
		 $
		   istart=istop;
		   nshow += 10;
		   if (istart<mshow) goto l1;