publishFullContrib: true for ydb

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commit_hash:c82a80ac4594723cebf2c7387dec9c60217f603e

1 files changed, 29 insertions, 0 deletions

diff --git a/contrib/python/zope.interface/py2/zope/interface/tests/test_compile_flags.py b/contrib/python/zope.interface/py2/zope/interface/tests/test_compile_flags.py
new file mode 100644
index 0000000000..3455c445f8
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+++ b/contrib/python/zope.interface/py2/zope/interface/tests/test_compile_flags.py
@@ -0,0 +1,29 @@
+##############################################################################
+#
+# Copyright (c) 2022 Zope Foundation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE
+#
+##############################################################################
+import struct
+import unittest
+
+import zope.interface  # noqa: try to load a C module for side effects
+
+
+class TestFloatingPoint(unittest.TestCase):
+
+    def test_no_fast_math_optimization(self):
+        # Building with -Ofast enables -ffast-math, which sets certain FPU
+        # flags that can cause breakage elsewhere.  A library such as BTrees
+        # has no business changing global FPU flags for the entire process.
+        zero_bits = struct.unpack("!Q", struct.pack("!d", 0.0))[0]
+        next_up = zero_bits + 1
+        smallest_subnormal = struct.unpack("!d", struct.pack("!Q", next_up))[0]
+        self.assertNotEqual(smallest_subnormal, 0.0)