[Python-checkins] r75946 - in python/branches/release26-maint: Lib/decimal.py Lib/test/decimaltestdata/extra.decTest Lib/test/test_decimal.py Misc/NEWS
mark.dickinson
python-checkins at python.org
Thu Oct 29 13:16:16 CET 2009
Author: mark.dickinson
Date: Thu Oct 29 13:16:15 2009
New Revision: 75946
Log:
Merged revisions 75943-75945 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r75943 | mark.dickinson | 2009-10-29 11:09:09 +0000 (Thu, 29 Oct 2009) | 1 line
Fix duplicate test numbers in extra.decTest
........
r75944 | mark.dickinson | 2009-10-29 12:04:00 +0000 (Thu, 29 Oct 2009) | 3 lines
Issue #7233: A number of two-argument Decimal methods were failing to
accept ints and longs for the second argument.
........
r75945 | mark.dickinson | 2009-10-29 12:11:18 +0000 (Thu, 29 Oct 2009) | 4 lines
Issue #7233: Fix Decimal.shift and Decimal.rotate methods for
arguments with more digits than the current context precision.
Bug reported by Stefan Krah.
........
Modified:
python/branches/release26-maint/ (props changed)
python/branches/release26-maint/Lib/decimal.py
python/branches/release26-maint/Lib/test/decimaltestdata/extra.decTest
python/branches/release26-maint/Lib/test/test_decimal.py
python/branches/release26-maint/Misc/NEWS
Modified: python/branches/release26-maint/Lib/decimal.py
==============================================================================
--- python/branches/release26-maint/Lib/decimal.py (original)
+++ python/branches/release26-maint/Lib/decimal.py Thu Oct 29 13:16:15 2009
@@ -2680,6 +2680,8 @@
value. Note that a total ordering is defined for all possible abstract
representations.
"""
+ other = _convert_other(other, raiseit=True)
+
# if one is negative and the other is positive, it's easy
if self._sign and not other._sign:
return _NegativeOne
@@ -2749,6 +2751,8 @@
Like compare_total, but with operand's sign ignored and assumed to be 0.
"""
+ other = _convert_other(other, raiseit=True)
+
s = self.copy_abs()
o = other.copy_abs()
return s.compare_total(o)
@@ -3117,6 +3121,9 @@
"""Applies an 'and' operation between self and other's digits."""
if context is None:
context = getcontext()
+
+ other = _convert_other(other, raiseit=True)
+
if not self._islogical() or not other._islogical():
return context._raise_error(InvalidOperation)
@@ -3138,6 +3145,9 @@
"""Applies an 'or' operation between self and other's digits."""
if context is None:
context = getcontext()
+
+ other = _convert_other(other, raiseit=True)
+
if not self._islogical() or not other._islogical():
return context._raise_error(InvalidOperation)
@@ -3152,6 +3162,9 @@
"""Applies an 'xor' operation between self and other's digits."""
if context is None:
context = getcontext()
+
+ other = _convert_other(other, raiseit=True)
+
if not self._islogical() or not other._islogical():
return context._raise_error(InvalidOperation)
@@ -3365,6 +3378,8 @@
if context is None:
context = getcontext()
+ other = _convert_other(other, raiseit=True)
+
ans = self._check_nans(other, context)
if ans:
return ans
@@ -3381,19 +3396,23 @@
torot = int(other)
rotdig = self._int
topad = context.prec - len(rotdig)
- if topad:
+ if topad > 0:
rotdig = '0'*topad + rotdig
+ elif topad < 0:
+ rotdig = rotdig[-topad:]
# let's rotate!
rotated = rotdig[torot:] + rotdig[:torot]
return _dec_from_triple(self._sign,
rotated.lstrip('0') or '0', self._exp)
- def scaleb (self, other, context=None):
+ def scaleb(self, other, context=None):
"""Returns self operand after adding the second value to its exp."""
if context is None:
context = getcontext()
+ other = _convert_other(other, raiseit=True)
+
ans = self._check_nans(other, context)
if ans:
return ans
@@ -3417,6 +3436,8 @@
if context is None:
context = getcontext()
+ other = _convert_other(other, raiseit=True)
+
ans = self._check_nans(other, context)
if ans:
return ans
@@ -3431,22 +3452,22 @@
# get values, pad if necessary
torot = int(other)
- if not torot:
- return Decimal(self)
rotdig = self._int
topad = context.prec - len(rotdig)
- if topad:
+ if topad > 0:
rotdig = '0'*topad + rotdig
+ elif topad < 0:
+ rotdig = rotdig[-topad:]
# let's shift!
if torot < 0:
- rotated = rotdig[:torot]
+ shifted = rotdig[:torot]
else:
- rotated = rotdig + '0'*torot
- rotated = rotated[-context.prec:]
+ shifted = rotdig + '0'*torot
+ shifted = shifted[-context.prec:]
return _dec_from_triple(self._sign,
- rotated.lstrip('0') or '0', self._exp)
+ shifted.lstrip('0') or '0', self._exp)
# Support for pickling, copy, and deepcopy
def __reduce__(self):
Modified: python/branches/release26-maint/Lib/test/decimaltestdata/extra.decTest
==============================================================================
--- python/branches/release26-maint/Lib/test/decimaltestdata/extra.decTest (original)
+++ python/branches/release26-maint/Lib/test/decimaltestdata/extra.decTest Thu Oct 29 13:16:15 2009
@@ -154,22 +154,6 @@
extr1302 fma 0E123 -Inf sNaN789 -> NaN Invalid_operation
extr1302 fma -Inf 0E-456 sNaN148 -> NaN Invalid_operation
--- Issue #6794: when comparing NaNs using compare_total, payloads
--- should be compared as though positive integers; not
--- lexicographically as strings.
-extr1400 comparetotal NaN123 NaN45 -> 1
-extr1401 comparetotal sNaN123 sNaN45 -> 1
-extr1402 comparetotal -NaN123 -NaN45 -> -1
-extr1403 comparetotal -sNaN123 -sNaN45 -> -1
-extr1404 comparetotal NaN45 NaN123 -> -1
-extr1405 comparetotal sNaN45 sNaN123 -> -1
-extr1406 comparetotal -NaN45 -NaN123 -> 1
-extr1407 comparetotal -sNaN45 -sNaN123 -> 1
-
-extr1410 comparetotal -sNaN63450748854172416 -sNaN911993 -> -1
-extr1411 comparetotmag NaN1222222222222 -NaN999999 -> 1
-
-
-- max/min/max_mag/min_mag bug in 2.5.2/2.6/3.0: max(NaN, finite) gave
-- incorrect answers when the finite number required rounding; similarly
-- for the other thre functions
@@ -187,6 +171,50 @@
extr1430 min_mag 9181716151 -NaN -> 9.18172E+9 Inexact Rounded
extr1431 min_mag NaN4 1.818180E100 -> 1.81818E+100 Rounded
+-- Issue #6794: when comparing NaNs using compare_total, payloads
+-- should be compared as though positive integers; not
+-- lexicographically as strings.
+extr1500 comparetotal NaN123 NaN45 -> 1
+extr1501 comparetotal sNaN123 sNaN45 -> 1
+extr1502 comparetotal -NaN123 -NaN45 -> -1
+extr1503 comparetotal -sNaN123 -sNaN45 -> -1
+extr1504 comparetotal NaN45 NaN123 -> -1
+extr1505 comparetotal sNaN45 sNaN123 -> -1
+extr1506 comparetotal -NaN45 -NaN123 -> 1
+extr1507 comparetotal -sNaN45 -sNaN123 -> 1
+
+extr1510 comparetotal -sNaN63450748854172416 -sNaN911993 -> -1
+extr1511 comparetotmag NaN1222222222222 -NaN999999 -> 1
+
+-- Issue #7233: rotate and scale should truncate an argument
+-- of length greater than the current precision.
+precision: 4
+extr1600 rotate 1234567 -5 -> NaN Invalid_operation
+extr1601 rotate 1234567 -4 -> 4567
+extr1602 rotate 1234567 -3 -> 5674
+extr1603 rotate 1234567 -2 -> 6745
+extr1604 rotate 1234567 -1 -> 7456
+extr1605 rotate 1234567 0 -> 4567
+extr1606 rotate 1234567 1 -> 5674
+extr1607 rotate 1234567 2 -> 6745
+extr1608 rotate 1234567 3 -> 7456
+extr1609 rotate 1234567 4 -> 4567
+extr1610 rotate 1234567 5 -> NaN Invalid_operation
+
+extr1650 shift 1234567 -5 -> NaN Invalid_operation
+extr1651 shift 1234567 -4 -> 0
+extr1652 shift 1234567 -3 -> 4
+extr1653 shift 1234567 -2 -> 45
+extr1654 shift 1234567 -1 -> 456
+extr1655 shift 1234567 0 -> 4567
+extr1656 shift 1234567 1 -> 5670
+extr1657 shift 1234567 2 -> 6700
+extr1658 shift 1234567 3 -> 7000
+extr1659 shift 1234567 4 -> 0
+extr1660 shift 1234567 5 -> NaN Invalid_operation
+
+
+
-- Tests for the is_* boolean operations
precision: 9
maxExponent: 999
Modified: python/branches/release26-maint/Lib/test/test_decimal.py
==============================================================================
--- python/branches/release26-maint/Lib/test/test_decimal.py (original)
+++ python/branches/release26-maint/Lib/test/test_decimal.py Thu Oct 29 13:16:15 2009
@@ -1358,6 +1358,53 @@
self.assertEqual(str(Decimal(0).sqrt()),
str(c.sqrt(Decimal(0))))
+ def test_conversions_from_int(self):
+ # Check that methods taking a second Decimal argument will
+ # always accept an integer in place of a Decimal.
+ self.assertEqual(Decimal(4).compare(3),
+ Decimal(4).compare(Decimal(3)))
+ self.assertEqual(Decimal(4).compare_signal(3),
+ Decimal(4).compare_signal(Decimal(3)))
+ self.assertEqual(Decimal(4).compare_total(3),
+ Decimal(4).compare_total(Decimal(3)))
+ self.assertEqual(Decimal(4).compare_total_mag(3),
+ Decimal(4).compare_total_mag(Decimal(3)))
+ self.assertEqual(Decimal(10101).logical_and(1001),
+ Decimal(10101).logical_and(Decimal(1001)))
+ self.assertEqual(Decimal(10101).logical_or(1001),
+ Decimal(10101).logical_or(Decimal(1001)))
+ self.assertEqual(Decimal(10101).logical_xor(1001),
+ Decimal(10101).logical_xor(Decimal(1001)))
+ self.assertEqual(Decimal(567).max(123),
+ Decimal(567).max(Decimal(123)))
+ self.assertEqual(Decimal(567).max_mag(123),
+ Decimal(567).max_mag(Decimal(123)))
+ self.assertEqual(Decimal(567).min(123),
+ Decimal(567).min(Decimal(123)))
+ self.assertEqual(Decimal(567).min_mag(123),
+ Decimal(567).min_mag(Decimal(123)))
+ self.assertEqual(Decimal(567).next_toward(123),
+ Decimal(567).next_toward(Decimal(123)))
+ self.assertEqual(Decimal(1234).quantize(100),
+ Decimal(1234).quantize(Decimal(100)))
+ self.assertEqual(Decimal(768).remainder_near(1234),
+ Decimal(768).remainder_near(Decimal(1234)))
+ self.assertEqual(Decimal(123).rotate(1),
+ Decimal(123).rotate(Decimal(1)))
+ self.assertEqual(Decimal(1234).same_quantum(1000),
+ Decimal(1234).same_quantum(Decimal(1000)))
+ self.assertEqual(Decimal('9.123').scaleb(-100),
+ Decimal('9.123').scaleb(Decimal(-100)))
+ self.assertEqual(Decimal(456).shift(-1),
+ Decimal(456).shift(Decimal(-1)))
+
+ self.assertEqual(Decimal(-12).fma(Decimal(45), 67),
+ Decimal(-12).fma(Decimal(45), Decimal(67)))
+ self.assertEqual(Decimal(-12).fma(45, 67),
+ Decimal(-12).fma(Decimal(45), Decimal(67)))
+ self.assertEqual(Decimal(-12).fma(45, Decimal(67)),
+ Decimal(-12).fma(Decimal(45), Decimal(67)))
+
class DecimalPythonAPItests(unittest.TestCase):
Modified: python/branches/release26-maint/Misc/NEWS
==============================================================================
--- python/branches/release26-maint/Misc/NEWS (original)
+++ python/branches/release26-maint/Misc/NEWS Thu Oct 29 13:16:15 2009
@@ -24,6 +24,11 @@
Library
-------
+- Issue #7233: Fix a number of two-argument Decimal methods to make
+ sure that they accept an int or long as the second argument. Also
+ fix buggy handling of large arguments (those with coefficient longer
+ than the current precision) in shift and rotate.
+
- Issue #7082: When falling back to the MIME 'name' parameter, the
correct place to look for it is the Content-Type header.
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