From: Stefan Behnel <stefan_ml@behnel.de>
Date: Tue, 21 Aug 2012 19:06:25 +0000 (+0200)
Subject: work around C compiler warning about unused label in optimised list/tuple looping... 
X-Git-Tag: 0.17b3~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2b232cded0c27651be32ff5658ce39885fc9be02;p=platform%2Fupstream%2Fpython-cython.git

work around C compiler warning about unused label in optimised list/tuple looping code
---

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index 0bcdea5..025f3d6 100755
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -2132,17 +2132,20 @@ class IteratorNode(ExprNode):
             inc_dec = '++'
         code.putln("#if CYTHON_COMPILING_IN_CPYTHON")
         code.putln(
-            "%s = Py%s_GET_ITEM(%s, %s); __Pyx_INCREF(%s); %s%s;" % (
+            "%s = Py%s_GET_ITEM(%s, %s); __Pyx_INCREF(%s); %s%s; %s" % (
                 result_name,
                 test_name,
                 self.py_result(),
                 self.counter_cname,
                 result_name,
                 self.counter_cname,
-                inc_dec))
+                inc_dec,
+                # use the error label to avoid C compiler warnings if we only use it below
+                code.error_goto_if_neg('0', self.pos)
+                ))
         code.putln("#else")
         code.putln(
-            "%s = PySequence_ITEM(%s, %s); %s%s; %s;" % (
+            "%s = PySequence_ITEM(%s, %s); %s%s; %s" % (
                 result_name,
                 self.py_result(),
                 self.counter_cname,