From b3eadf3f3d0cfd4c56a519ae289288ee829229a5 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Thu, 27 Sep 2018 15:21:25 +1000
Subject: py/objfloat: Fix abs(-0.0) so it returns 0.0.

Nan and inf (signed and unsigned) are also handled correctly by using
signbit (they were also handled correctly with "val<0", but that didn't
handle -0.0 correctly).  A test case is added for this behaviour.
---
 tests/float/builtin_float_abs.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tests/float/builtin_float_abs.py

(limited to 'tests/float')

diff --git a/tests/float/builtin_float_abs.py b/tests/float/builtin_float_abs.py
new file mode 100644
index 000000000..c0935c6ee
--- /dev/null
+++ b/tests/float/builtin_float_abs.py
@@ -0,0 +1,13 @@
+# test builtin abs function with float args
+
+for val in (
+    '1.0',
+    '-1.0',
+    '0.0',
+    '-0.0',
+    'nan',
+    '-nan',
+    'inf',
+    '-inf',
+    ):
+    print(val, abs(float(val)))
-- 
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