Commits · 20d6d64a4b465225f8677ad3ecca453d544bdc64 · SageMath / SageMath Developers / tracmirror

21 Jan, 2016 1 commit
- Fix unlimited memory · 20d6d64a
  Jeroen Demeyer authored Jan 21, 2016
  
  20d6d64a
19 Jan, 2016 1 commit
- Updated Sage version to 7.0 · 1961f943
  Volker Braun authored Jan 19, 2016
  
  1961f943
18 Jan, 2016 3 commits
- Trac #19843: Improve location change error message · 94dd2e2d
  Release Manager authored Jan 18, 2016
```
Raise an error if the Sage installation tree was relocated.

URL: http://trac.sagemath.org/19843
Reported by: vbraun
Ticket author(s): Volker Braun, Jeroen Demeyer
Reviewer(s): Volker Braun
```
  94dd2e2d
- Raise an error if Sage has been relocated · cec45522
  Jeroen Demeyer authored Jan 18, 2016
  
  cec45522
- Improve location change error message · 3cea615d
  Volker Braun authored Jan 07, 2016
  
  3cea615d
15 Jan, 2016 2 commits

Trac #19879: Move sage/rings/arith to sage/arith · 858e8d9d

Release Manager authored Jan 15, 2016

The file `src/sage/rings/arith.py` contains a bunch of "arithmetic"
functions. I think this does not really belong in `rings` but in a new
top-level directory. Eventually, we should move some more files (integer
factorisation, sum of squares, Bernoulli numbers, continued fractions)
there but we start with just the file `arith.py`.

URL: http://trac.sagemath.org/19879
Reported by: jdemeyer
Ticket author(s): Jeroen Demeyer
Reviewer(s): Jean-Pierre Flori

858e8d9d

Trac #19415: Deprecate composite_field() · c857bbc3

Release Manager authored Jan 15, 2016

It seems that `composite_field()` can be replaced by `common_parent()`
from the coercion framework.

URL: http://trac.sagemath.org/19415
Reported by: jdemeyer
Ticket author(s): Jeroen Demeyer
Reviewer(s): Vincent Delecroix

c857bbc3

14 Jan, 2016 2 commits
- Move sage.rings.arith to sage.arith.misc · 5e7791c8
  Jeroen Demeyer authored Jan 13, 2016
  
  5e7791c8
- Updated Sage version to 7.0.rc1 · adef4de9
  Volker Braun authored Jan 14, 2016
  
  adef4de9
13 Jan, 2016 9 commits

Trac #19880: update openssl to 1.0.2e · f6287c19

Release Manager authored Jan 13, 2016

New security fix for openssl, see
https://openssl.org/news/secadv/20151203.txt

Tarball available at https://openssl.org/source/openssl-1.0.2e.tar.gz

URL: http://trac.sagemath.org/19880
Reported by: tmonteil
Ticket author(s): Thierry Monteil
Reviewer(s): Volker Braun

f6287c19

#19880 update openssl to 1.0.2e · d285c78f
Thierry Monteil authored Jan 13, 2016

d285c78f
Deprecate composite_field() · db81fe53
Jeroen Demeyer authored Oct 15, 2015

db81fe53

Trac #17785: crash in multipolynomial substitutions · ae128a30

Release Manager authored Jan 13, 2016

The substitution code for multipolynomial (using Singular) results in a
SIGSEV. For example, with `R.<x,y,z> = QQ[]` and any of
{{{
x.subs(None,y=x,x=0,z=y)
x.subs(None,x=0,y=x,z=x)
x.subs(None,x=0,y=0,z=x)
x.subs(None,x=0,y=0,z=z)
}}}
Though, if we do not mix integer and variable in the substitutions it
seems to work fine
{{{
sage: x.subs(None,x=0,y=0,z=0)
0
sage: x.subs(None,x=z,y=x,z=y)
z
sage: x.subs(None,x=x,y=y,z=z)
x
}}}
And the following also works
{{{
sage: x.subs(None,x=0,y=x,z=0)
0
sage: x.subs(None,x=0,y=y,z=0)
0
sage: x.subs(None,x=0,y=z,z=0)
0
sage: x.subs(None,x=y,y=z,z=0)
y
sage: x.subs(None,x=y,y=0,z=0)
y
sage: x.subs(None,x=z,y=0,z=0)
z
}}}
-------

Original report

The following code gives a coredump in Sage-6.5.rc3:
{{{
a11,a12,a13,a21,a22,a23,a31,a32,a33 = allvars =
var("a11,a12,a13,a21,a22,a23,a31,a32,a33")
P=PolynomialRing(QQ,allvars,order='degrevlex')
P.inject_variables()
A=matrix([[a11,a12,a13,],[a21,a22,a23,],[a31,a32,a33]])
A.subs(a11=a13,a21=-a23,a31=a33,a22=0)
}}}

URL: http://trac.sagemath.org/17785
Reported by: cnassau
Ticket author(s): Vincent Delecroix
Reviewer(s): Volker Braun

ae128a30

Trac #19781: Move broken optional packages to experimental · b39fa51c

Release Manager authored Jan 13, 2016

The following optional packages are broken and should either be fixed or
moved to experimental:

* `cryptominisat`: crashes Sage on 32-bit.
* `lie`: a very arcane build process (copies over the complete build
directory and requires `bison`).

URL: http://trac.sagemath.org/19781
Reported by: jdemeyer
Ticket author(s): Jeroen Demeyer
Reviewer(s): Travis Scrimshaw

b39fa51c

Trac #15348: "R.<a> =" syntactic sugar incorrect for EquationOrder · e5af38dd

Release Manager authored Jan 13, 2016

After typing
{{{
sage: f = x^2+1
sage: R.<i> = ZZ.extension(f)
}}}
I expect variable {{{i}}} to be the element of {{{R}}} named {{{'i'}}}.
However, it is not. It is the element 1.

This is due to the generators of an order in Sage being its //module//
generators (as noted by {{{EquationOrder?}}}):
{{{
sage: R.gens()
[1, i]
}}}

We fix this by redefining `_first_ngens()` (which is what the preparser
uses to implement the `R.<x> =` syntax) to use `_defining_names()`,
which we override for orders.

URL: http://trac.sagemath.org/15348
Reported by: emassop
Ticket author(s): Jeroen Demeyer
Reviewer(s): Erik Massop

e5af38dd

Move cryptominisat and lie to experimental · dd4e0cde
Jeroen Demeyer authored Jan 13, 2016

dd4e0cde

Trac #19750: singular genus crash · d652c8b1

Release Manager authored Jan 13, 2016

This crashes on my desktop in about 90% of the buildbot runs, has been
for a while now
{{{
sage: P.<x,y,z> = QQ[] ## line 938 ##
sage: C= Curve((x-y)*(y-z)*(z-x));  ## line 939 ##
sage: import sage.libs.singular.function_factory ## line 940 ##
sage: sing_genus =
sage.libs.singular.function_factory.ff.normal__lib.genus ## line 941 ##
// ** s_internalDelete: cannot delete type $INVALID$(-606348325)
------------------------------------------------------------------------
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/lib64/libc.so.6(cfree+0x22)[0x7f220867aca2]
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r.so(+0x15070d)[0x7f21deb9f70d]
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r.so(_Z8killhdl2P5idrecPS0_P9sip_sring+0x223)[0x7f21deba068a]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libsingula
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r.so(_Z10killlocalsi+0x8b)[0x7f21deba7328]
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r.so(_Z8iiPStartP5idrecP6sleftv+0x408)[0x7f21deba21d6]
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r.so(+0x154130)[0x7f21deba3130]
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r.so(_Z9iiLoadLIBP8_IO_FILEPKcPcP5idrecii+0x27c)[0x7f21deba33d2]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libsingula
r.so(_Z8iiLibCmdPciii+0x179)[0x7f21deba2fa8]
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r.so(_Z9iiLoadLIBP8_IO_FILEPKcPcP5idrecii+0x2d2)[0x7f21deba3428]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libsingula
r.so(_Z8iiLibCmdPciii+0x179)[0x7f21deba2fa8]
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r.so(_Z9iiLoadLIBP8_IO_FILEPKcPcP5idrecii+0x2d2)[0x7f21deba3428]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libsingula
r.so(_Z8iiLibCmdPciii+0x179)[0x7f21deba2fa8]
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r.so(_Z9iiLoadLIBP8_IO_FILEPKcPcP5idrecii+0x2d2)[0x7f21deba3428]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libsingula
r.so(_Z8iiLibCmdPciii+0x179)[0x7f21deba2fa8]
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/site-packages/sage/libs/singular/function.so(+0x3d013)[0x7f21dd4bb013]
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.7.so.1.0(+0x15ae00)[0x7f2209438e00]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyEval_EvalFrameEx+0x7c85)[0x7f2209433642]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(+0x15b119)[0x7f2209439119]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(+0x15ae00)[0x7f2209438e00]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyEval_EvalFrameEx+0x7c85)[0x7f2209433642]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(+0x15b119)[0x7f2209439119]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(+0x15ae00)[0x7f2209438e00]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyEval_EvalFrameEx+0x7c85)[0x7f2209433642]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyEval_EvalCodeEx+0x113f)[0x7f220943610b]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyEval_EvalCode+0x41)[0x7f220942b998]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(+0x18c616)[0x7f220946a616]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyRun_FileExFlags+0xb7)[0x7f220946a59c]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyRun_SimpleFileExFlags+0x2e6)[0x7f2209468c47]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(PyRun_AnyFileExFlags+0x88)[0x7f2209468285]
/mnt/disk/home/buildslave-sage/slave/sage_git/build/local/lib/libpython2
.7.so.1.0(Py_Main+0xd2f)[0x7f220948460b]
python(main+0x20)[0x400846]
/lib64/libc.so.6(__libc_start_main+0xf0)[0x7f2208617580]
python(_start+0x29)[0x400759]
------------------------------------------------------------------------
Attaching gdb to process id 19394.
gdb: Symbol `PyBool_Type' has different size in shared object, consider
re-linking
gdb: Symbol `_Py_TrueStruct' has different size in shared object,
consider re-linking
gdb: Symbol `_Py_NoneStruct' has different size in shared object,
consider re-linking
gdb: Symbol `_Py_NotImplementedStruct' has different size in shared
object, consider re-linking
gdb: Symbol `PyFloat_Type' has different size in shared object, consider
re-linking

Saved trace to /mnt/disk/home/buildslave-
sage/slave/sage_git/crashlogs/sage_crash_X1UsuX.log
------------------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred in Sage.
This probably occurred because a *compiled* component of Sage has a bug
in it and is not properly wrapped with sig_on(), sig_off().
Sage will now terminate.
------------------------------------------------------------------------
}}}

URL: http://trac.sagemath.org/19750
Reported by: vbraun
Ticket author(s): Volker Braun
Reviewer(s): Jeroen Demeyer, François Bissey

d652c8b1

Updated Sage version to 7.0.rc0 · f35ec3bf
Volker Braun authored Jan 13, 2016

f35ec3bf

12 Jan, 2016 10 commits

Trac #19862: matrix.zero(15) · 36473b29

Release Manager authored Jan 12, 2016

This syntax is possible for `matrix.ones`, for `matrix.identity` (and
others) but not for `matrix.zero`. More: the code is there to manage it,
but there is no default for the value of `n`. This branch just adds it,
with a doctest.

Nathann

URL: http://trac.sagemath.org/19862
Reported by: ncohen
Ticket author(s): Nathann Cohen
Reviewer(s): Marc Mezzarobba

36473b29

Trac #19869: Faster is_less_than() for set partitions · 7f44fd14

Release Manager authored Jan 12, 2016

This is slightly faster version for `is_less_than` on set partitions.
For example runtime for

{{{
S = SetPartitions(5)
Poset((S, S.is_less_than))
}}}

drops 25% and 27% on the same with 6 elements.

URL: http://trac.sagemath.org/19869
Reported by: jmantysalo
Ticket author(s): Jori Mäntysalo
Reviewer(s): Travis Scrimshaw

7f44fd14

Trac #19863: Static error rate channel does not always add as many errors as expected · d096d1c5

Release Manager authored Jan 12, 2016

I noticed the following:

{{{
V = VectorSpace(GF(2), 2)
Chan = channels.StaticErrorRateChannel(V, 1)
for i in range(100):
    c = V.random_element()
    r = Chan(c)
    assert c != r

AssertionError
}}}

This is due to a line in the `transmit_unsafe` methods which replaces
values of the transmitted vector by random values picked from the base
ring of the transmitted vector.
It works with high probability for big rings, but obviously not for my
example.

In any case, it does not respect the promised behaviour and thus should
be fixed.

URL: http://trac.sagemath.org/19863
Reported by: dlucas
Ticket author(s): David Lucas
Reviewer(s): Johan Sebastian Rosenkilde Nielsen

d096d1c5

Trac #19861: Janko-Kharaghani strongly regular graphs of orders 936 and 1800 · 8bcb5cdc

Release Manager authored Jan 12, 2016

Here is one of the few missing SRG with v<1300.

Nathann

URL: http://trac.sagemath.org/19861
Reported by: ncohen
Ticket author(s): Nathann Cohen
Reviewer(s): Dima Pasechnik

8bcb5cdc

Trac #19829: Cache the results of monoid_generators for IndexedFreeMonoid · e1776596

Release Manager authored Jan 12, 2016

We should cache this because it can be relatively expensive to compute
and I have a few tight loops where this becomes a major slowdown.

URL: http://trac.sagemath.org/19829
Reported by: tscrim
Ticket author(s): Travis Scrimshaw
Reviewer(s): Darij Grinberg

e1776596

Trac #19745: Tutorial for new structures in coding theory · 453256c3

Release Manager authored Jan 12, 2016

This year, we reworked the API of Sage's coding theory library and now
have an object-oriented structure to manage code families, encoders and
decoders.

In this ticket we introduce a thematic tutorial which explains how to
use this new API to develop new code families.

This tutorials relies on a step-by-step example, in which we construct a
code, a few encoders for it, a decoder for it and a somehow related
channel.

URL: http://trac.sagemath.org/19745
Reported by: dlucas
Ticket author(s): David Lucas
Reviewer(s): Travis Scrimshaw, Julien Lavauzelle

453256c3

Trac #19428: Add support for MPFR_RNDA rounding mode · 6c4bd3df

Release Manager authored Jan 12, 2016

This rounding mode is "new" since MPFR 3.

Also use MPFR 3 names:
* `GMP_RNDx` -> `MPFR_RNDx`
* `mp_prec_t` -> `mpfr_prec_t`
* `mp_rnd_t` -> `mpfr_rnd_t`

URL: http://trac.sagemath.org/19428
Reported by: jdemeyer
Ticket author(s): Jeroen Demeyer
Reviewer(s): Vincent Delecroix, Marc Mezzarobba

6c4bd3df

Some little final tweaks. · 34019fe7
Travis Scrimshaw authored Jan 12, 2016

34019fe7
Merge branch 'u/dlucas/thematic_tutorial' of trac.sagemath.org:sage into u/dlucas/thematic_tutorial · efcb779b
Travis Scrimshaw authored Jan 12, 2016

efcb779b
Faster is_less_than(). · 90192f77
Jori Mäntysalo authored Jan 12, 2016

90192f77

11 Jan, 2016 12 commits

Support RNDA in RealIntervalField._real_field() · 9c58daa5
Marc Mezzarobba authored Jan 11, 2016

9c58daa5
mpmath.ext_impl: simplify rndmode_to_mpfr · 5d96da0f
Marc Mezzarobba authored Jan 11, 2016
```
The second argument no longer makes sense with sage supporting MPFR_RNDA
(#19428).
```
5d96da0f

Trac #19852: Fix some typos · d463e101

Release Manager authored Jan 11, 2016

Fix several misspelled occurrences of the words "dictionary",
"function", "partition", "possess", "symmetric", "theory".

URL: http://trac.sagemath.org/19852
Reported by: pbruin
Ticket author(s): Peter Bruin, Jori Mäntysalo
Reviewer(s): Jori Mäntysalo, Frédéric Chapoton

d463e101

Trac #19864: Implement conversion FLINT fmpz_t -> PARI GEN · e346c4c8

Release Manager authored Jan 11, 2016

URL: http://trac.sagemath.org/19864
Reported by: jdemeyer
Ticket author(s): Jeroen Demeyer
Reviewer(s): Jean-Pierre Flori

e346c4c8

Trac #19831: Add random_element() for cones · 1c330e34

Release Manager authored Jan 11, 2016

For testing and demonstration it's sometimes useful to be able to get
"any" element of a cone. Other structures use `random_element` for the
same purpose.

URL: http://trac.sagemath.org/19831
Reported by: mjo
Ticket author(s): Michael Orlitzky
Reviewer(s): Andrey Novoseltsev

1c330e34

Trac #19790: FLINT testsuite drops LDFLAGS · 7e9036c6

Release Manager authored Jan 11, 2016

FLINT itself uses `LDFLAGS` correctly, but the testsuite does not.
Symptom:
{{{
build/interfaces/test/t-NTL-interface: /usr/lib/powerpc64le-linux-
gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by
/home/jdemeyer/sage-gcc53/local/lib/libntl.so.19)
Makefile:211: recipe for target 'check' failed
}}}

Using verbose `make` rules, we see the command line to compile that
file:
{{{
g++ -ansi -pedantic -Wall -O2 -funroll-loops -g   -I/home/jdemeyer/sage-
gcc53/local/var/tmp/sage/build/flint-2.5.2/src -I/home/jdemeyer/sage-
gcc53/local/include -I/home/jdemeyer/sage-gcc53/local/include
-I/home/jdemeyer/sage-gcc53/local/include interfaces/test/t-NTL-
interface.cpp build/interfaces/NTL-interface.o -o
build/interfaces/test/t-NTL-interface -L/home/jdemeyer/sage-
gcc53/local/var/tmp/sage/build/flint-2.5.2/src -L/home/jdemeyer/sage-
gcc53/local/lib -L/home/jdemeyer/sage-gcc53/local/lib -L/home/jdemeyer
/sage-gcc53/local/lib -lflint -lmpfr -lgmp -lm -lntl -lpthread
}}}

URL: http://trac.sagemath.org/19790
Reported by: jdemeyer
Ticket author(s): Volker Braun
Reviewer(s): Jeroen Demeyer

7e9036c6

Rewrote the doctest · 1d29dab8
David Lucas authored Jan 11, 2016

1d29dab8
Integrated reviewer's comments · 6821e900
David Lucas authored Jan 11, 2016

6821e900
Implement conversion fmpz_t -> GEN · efc6c479
Jeroen Demeyer authored Jan 11, 2016

efc6c479
Fixed bug in static error rate channel · 634b7624
David Lucas authored Jan 11, 2016

634b7624
trac #19861: Janko-Kharaghani strongly regular graphs of orders 936 and 1800 · 58a483c9
Nathann Cohen authored Jan 11, 2016

58a483c9
trac #19862: matrix.zero(15) · 3e4f9e11
Nathann Cohen authored Jan 11, 2016

3e4f9e11