Add a dtoa.c test value that triggered a bug in recent versions of
Gay's dtoa.c (but not for current versions of Python's dtoa.c).
Thanks Rick Regan for finding and reporting this.
diff --git a/Lib/test/test_strtod.py b/Lib/test/test_strtod.py
index c30ce60..7a42a89 100644
--- a/Lib/test/test_strtod.py
+++ b/Lib/test/test_strtod.py
@@ -387,6 +387,13 @@
'999999999999999944488848768742172978818416595458984375e-54',
'9999999999999999444888487687421729788184165954589843749999999e-54',
'9999999999999999444888487687421729788184165954589843750000001e-54',
+ # Value found by Rick Regan that gives a result of 2**-968
+ # under Gay's dtoa.c (as of Nov 04, 2010); since fixed.
+ # (Fixed some time ago in Python's dtoa.c.)
+ '0.0000000000000000000000000000000000000000100000000' #...
+ '000000000576129113423785429971690421191214034235435' #...
+ '087147763178149762956868991692289869941246658073194' #...
+ '51982237978882039897143840789794921875',
]
for s in test_strings:
self.check_strtod(s)