From: Simon Tatham <anakin@pobox.com>
Date: Thu, 24 Dec 2015 22:05:48 +0000 (+0000)
Subject: Add a missing error message in Flood solve_game().
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=sgt-puzzles.git;a=commitdiff_plain;h=d295a8a93c88bbd65ecfa57f4b70c9c4c6286e97;hp=f1af73319ffceb1b936669182f540454eeb67541

Add a missing error message in Flood solve_game().

The only situation in which it actually can't find a solution is if
the puzzle is already solved, in which case it can at least fill in
*error to say so before it returns NULL.
---

diff --git a/flood.c b/flood.c
index bbba915..f97de2f 100644
--- a/flood.c
+++ b/flood.c
@@ -697,8 +697,10 @@ static char *solve_game(const game_state *state, const game_state *currstate,
     char buf[256];
     struct solver_scratch *scratch;
 
-    if (currstate->complete)
+    if (currstate->complete) {
+        *error = "Puzzle is already solved";
         return NULL;
+    }
 
     /*
      * Find the best solution our solver can give.