#2567: import MPFR_PREC_MAX from mpfr.h instead of hard coding it to the 32 bit
limit
--------------------------------+-------------------------------------------
Reporter: was | Owner: somebody
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: basic arithmetic | Keywords:
Work_issues: | Upstream: N/A
Reviewer: Paul Zimmermann | Author: Mike Hansen
Merged: | Dependencies:
--------------------------------+-------------------------------------------
Changes (by zimmerma):
* status: needs_review => needs_work
Comment:
one item fails on a 32-bit machine (with Sage 4.7.2):
{{{
sage -t "devel/sage/sage/rings/real_mpfr.pyx"
**********************************************************************
File "/localdisk/tmp/sage-4.7.2/devel/sage/sage/rings/real_mpfr.pyx", line
196:
sage: R = RealField(2^31); R
Expected:
Traceback (most recent call last):
...
OverflowError: ... too large to convert to int
Got:
Traceback (most recent call last):
File "/localdisk/tmp/sage-4.7.2/local/bin/ncadoctest.py", line 1231,
in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/localdisk/tmp/sage-4.7.2/local/bin/sagedoctest.py", line 38,
in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/localdisk/tmp/sage-4.7.2/local/bin/ncadoctest.py", line 1172,
in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_2[4]>", line 1, in <module>
R = RealField(Integer(2)**Integer(31)); R###line 196:
sage: R = RealField(2^31); R
File "real_mpfr.pyx", line 280, in sage.rings.real_mpfr.RealField
(sage/rings/real_mpfr.c:3802)
File "real_mpfr.pyx", line 299, in
sage.rings.real_mpfr.RealField_class.__init__
(sage/rings/real_mpfr.c:4025)
ValueError: prec (=2147483648) must be >= 2 and <= 2147483647.
**********************************************************************
1 items had failures:
1 of 7 in __main__.example_2
***Test Failed*** 1 failures.
For whitespace errors, see the file
/users/caramel/zimmerma/.sage//tmp/real_mpfr_5754.py
[14.2 s]
----------------------------------------------------------------------
The following tests failed:
sage -t "devel/sage/sage/rings/real_mpfr.pyx"
}}}
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2567#comment:28>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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