valgrind spotted this array underrun. I wonder if this might have

been causing some of Verity's nonreproducible weirdnesses.

git-svn-id: svn://svn.tartarus.org/sgt/puzzles@5884 cda61777-01e9-0310-a592-d414129be87e

diff --git a/mines.c b/mines.c
index 5023faa..a6562f6 100644 (file)
--- a/mines.c
+++ b/mines.c
@@ -1086,7 +1086,7 @@ static int minesolve(int w, int h, int n, signed char *grid,
                         * next. Backtrack cursor to the nearest 1,
                         * change it to a 0 and continue.
                         */
-                       while (cursor-- >= 0 && !setused[cursor]);
+                       while (--cursor >= 0 && !setused[cursor]);
                        if (cursor >= 0) {
                            assert(setused[cursor]);