diff: mdb bug fix

[Fergus Henderson]

Estimated hours taken: 0.5

Fix a bug reported by Peter Ross <petdr at cs.mu.OZ.AU>
where mdb was sometimes failing to stop at breakpoints.

trace/mercury_trace_spy.c:
	Fix a bug -- the sense of the comparison argument to MR_bsearch()
	was inverted.

Index: trace/mercury_trace_spy.c
===================================================================
RCS file: /home/mercury1/repository/mercury/trace/mercury_trace_spy.c,v
retrieving revision 1.1
diff -u -r1.1 mercury_trace_spy.c
--- mercury_trace_spy.c	1998/10/16 06:20:21	1.1
+++ mercury_trace_spy.c	1999/02/04 16:51:57
@@ -42,7 +42,7 @@
 	bool	found;
 
 	MR_bsearch(MR_spied_proc_next, slot, found,
-		(Unsigned) entry - (Unsigned) MR_spied_procs[slot].spy_proc);
+		(Unsigned) MR_spied_procs[slot].spy_proc - (Unsigned) entry);
 	if (found) {
 		return slot;
 	} else {

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "Binaries may die
WWW: <http://www.cs.mu.oz.au/~fjh>  |   but source code lives forever"
PGP: finger fjh at 128.250.37.3        |     -- leaked Microsoft memo.