From 65cb03487d33706c590a82604800c8d22ffeb8ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophile=20Bastian?= <contact@tobast.fr>
Date: Fri, 9 Feb 2018 00:58:09 +0100
Subject: [PATCH] March generator: enhance error handling

---
 tools/gen_marching_cubes_conf.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/gen_marching_cubes_conf.py b/tools/gen_marching_cubes_conf.py
index 8c76a14..be40cad 100644
--- a/tools/gen_marching_cubes_conf.py
+++ b/tools/gen_marching_cubes_conf.py
@@ -7,6 +7,7 @@
 """
 
 from functools import reduce
+import sys
 
 
 class Vert:
@@ -203,9 +204,13 @@ def do_main(base_cases):
                 if index[code] is None:
                     index[code] = tr_case
 
+    has_unbound = False
     for (val, tri) in enumerate(index):
         if tri is None:
-            print(">> UNBOUND {}".format(val))
+            print(">> UNBOUND {}".format(val), file=sys.stderr)
+            has_unbound = True
+    if has_unbound:
+        raise RuntimeError("Some cases were not generated.")
 
     print(("static const std::vector<MarchingCubes::CubeTri> "
            "edges_of_intersection[256] = {"))