From 66706800218603b5b7273f72cb13c265791876d4 Mon Sep 17 00:00:00 2001
From: Stephan Seitz <stephan.seitz@fau.de>
Date: Fri, 27 Sep 2019 15:09:39 +0200
Subject: [PATCH] Bugfix: this bracket should not be here (collate_types
 returns single type)

---
 pystencils/data_types.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pystencils/data_types.py b/pystencils/data_types.py
index 18699253..efee3d9c 100644
--- a/pystencils/data_types.py
+++ b/pystencils/data_types.py
@@ -430,7 +430,7 @@ def collate_types(types, forbid_collation_to_float=False):
     if forbid_collation_to_float:
         types = [t for t in types if not (hasattr(t, 'is_float') and t.is_float())]
         if not types:
-            return [create_type('int32')]
+            return create_type('int32')
 
     # Pointer arithmetic case i.e. pointer + integer is allowed
     if any(type(t) is PointerType for t in types):
-- 
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