fix result types for C math operations on Python booleans

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index 9bcd2b98c9263920afcedaa76c5982d9c46e6cb6..86fc0bff8b88933aaeb6b2ed54ee1b8ed94c3c7d 100755 (executable)
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -5651,7 +5651,12 @@ class NumBinopNode(BinopNode):
     
     def compute_c_result_type(self, type1, type2):
         if self.c_types_okay(type1, type2):
-            return PyrexTypes.widest_numeric_type(type1, type2)
+            widest_type = PyrexTypes.widest_numeric_type(type1, type2)
+            if widest_type is PyrexTypes.c_bint_type:
+                if self.operator not in '|^&':
+                    # False + False == 0 # not False!
+                    widest_type = PyrexTypes.c_int_type
+            return widest_type
         else:
             return None