f21587e3a8
mpd_qpowmod(): calculate result with zero-exponent for compatibility with
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decimal.py. The hack to remove the ideal exponent is no longer required.
2012-08-23 15:05:29 +02:00
ad5b43995e
In the 32-bit build, dec_hash() raised InvalidOperation if the operand
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had a coefficient with MAX_PREC=425000000 digits and a negative exponent.
Increasing the context limits above the official values fixes the issue
and is safe (in this case!).
2012-08-22 19:11:50 +02:00
b9e36b97f2
Add unused parameter to a couple of METH_NOARGS functions. The previous
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form is used in many places in the source tree, but was found to be incorrect
in a recent tracker discussion.
2012-07-28 13:53:47 +02:00
c35a8e5c98
Proactive reliability fix for broken FPUs: The base conversion functions
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use log10() to calculate the size of the output array. The current code
has been tested on x86/amd64 (and to a lesser extent on qemu-mips qemu-sparc)
and produces sufficiently large values for all inputs tested so far (coefficient
sizes of 10**18 - 1 are hard to test exhaustively).
The new code does not rely on the correctness of log10() and resizes
the output arrays if the allocated space is insufficient.
2012-06-30 18:05:33 +02:00
78f075636c
Speed up _decimal by another 10-15% by caching the thread local context
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that was last accessed. In the pi benchmark (64-bit platform, prec=9),
_decimal is now only 1.5x slower than float.
2012-06-24 12:20:03 +02:00
cc74b6ab14
Issue #14478 : Cache the hash of a Decimal in the C version.
2012-04-10 16:27:58 +02:00
e37f8b29fc
Issue #14520 : Add __sizeof__() method to the Decimal object.
2012-04-09 21:27:20 +02:00
dd159ce606
Speed up _decimal by 30-40% for numerical workloads by improving the cache
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locality for regularly sized coefficients.
2012-04-09 20:24:57 +02:00
94ef3e4c1d
Use the MPD() accessor macro.
2012-04-09 19:20:46 +02:00
4771cca817
Whitespace.
2012-04-05 16:15:25 +02:00
871b96bd5a
Reduce array size.
2012-04-05 16:07:22 +02:00
a6169484c2
Formatting.
2012-04-05 15:48:59 +02:00
ff3eca0cc3
Allow printing a leading '-' and the maximum number of exponent digits
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rather than raising RuntimeError (allocated space is sufficient for the
additional character).
2012-04-05 15:46:19 +02:00
0774e9b9f5
Raise InvalidOperation if exponents of zeros are clamped during exact
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conversion in the Decimal constructor. Exact here refers to the
representation and not to the value (clamping does not change the value).
2012-04-05 15:21:58 +02:00
91c0274bc4
Improve comments.
2012-04-02 20:51:08 +02:00
5100171d81
Clear the context flags if a context is initialized from the DefaultContext.
2012-04-02 15:02:21 +02:00
fe17b2bc77
Raise MemoryError instead of InvalidOperation/MallocError for compatibility
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with decimal.py. The standard specifies InsufficientStorage (MallocError) as
a sub-condition of InvalidOperation. This allows a calculation to continue
with NaN results when allocation fails.
2012-03-25 18:59:21 +02:00
b6405efd1b
Use the same exception hierarchy as decimal.py. FloatOperation now also
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inherits from TypeError. Cleanup in module initialization to make repeated
import failures robust.
2012-03-23 14:46:48 +01:00
7cc5521d40
Whitespace.
2012-03-21 20:21:20 +01:00
1919b7e72b
Issue #7652 : Integrate the decimal floating point libmpdec library to speed
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up the decimal module. Performance gains of the new C implementation are
between 12x and 80x, depending on the application.
2012-03-21 18:25:23 +01:00
Stefan Krah