From bdc6e86e079dd8a82e9ead1d4041c2e17c882437 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Tue, 26 Sep 2017 12:57:51 +1000
Subject: py/objfloat: Support raising a negative number to a fractional power.

This returns a complex number, following CPython behaviour.  For ports that
don't have complex numbers enabled this will raise a ValueError which gives
a fail-safe for scripts that were written assuming complex numbers exist.
---
 tests/float/complex1.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'tests/float/complex1.py')

diff --git a/tests/float/complex1.py b/tests/float/complex1.py
index 7f0b317b3..854410545 100644
--- a/tests/float/complex1.py
+++ b/tests/float/complex1.py
@@ -53,6 +53,10 @@ print(type(hash(1j)))
 # float on lhs should delegate to complex
 print(1.2 + 3j)
 
+# negative base and fractional power should create a complex
+ans = (-1) ** 2.3; print("%.5g %.5g" % (ans.real, ans.imag))
+ans = (-1.2) ** -3.4; print("%.5g %.5g" % (ans.real, ans.imag))
+
 # check printing of inf/nan
 print(float('nan') * 1j)
 print(float('inf') * (1 + 1j))
-- 
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