[pypy-commit] pypy improve-rbigint: Specialize 0**N, fix test_longobject.py

[Stian Andreassen]

Author: Stian Andreassen
Branch: improve-rbigint
Changeset: r56394:34a5cc2af0fe
Date: 2012-07-23 00:47 +0200
http://bitbucket.org/pypy/pypy/changeset/34a5cc2af0fe/

Log:    Specialize 0**N, fix test_longobject.py

diff --git a/pypy/rlib/rbigint.py b/pypy/rlib/rbigint.py
--- a/pypy/rlib/rbigint.py
+++ b/pypy/rlib/rbigint.py
@@ -553,6 +553,9 @@
 
     @jit.elidable
     def pow(a, b, c=None):
+        if a.sign == 0:
+            return NULLRBIGINT
+        
         negativeOutput = False  # if x<0 return negative output
 
         # 5-ary values.  If the exponent is large enough, table is
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