Activity
From 18 Feb 2024 to 18 Mar 2024
18 Mar 2024
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21:48 Bug #1726: Dangling references to temporaries
- *Hi Jerry James*
Could I send you a TGZ of the latest sources, so that you can try compiling, and see whether there ... -
- *@sat@* is perhaps too short, and may be ambiguous with the *@SAT@* (satisfiability) family of functions.
I'm undeci... -
18:44 Support #942: Which names to use? Intersection/saturation vs intersect/saturate
- [Conversation with Robbiano]
XXXX-ation gives a commutative feeling, XXXX-ate gives and action (non-commutative) fee... -
- Also *@IntersectionList@*
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- In CoCoA-4 we had intersection and saturation. Now we have a mixture...
Singular and Macaulay use *@intersect@* a... -
- Perhaps *@ERR::NYI@* ?
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- For the time being: should we give error? (as if non-homogeneous?)
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- If the grading is positive and over ZZ^1 then we use the following general cut-off so that we do not need to scan the...
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- This was mostly done anyway. I changed some things in the involutive code (without really understanding it).
I ha... -
- John will investigate this, and hopefully close it.
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- In principle we could make 2 such functions: one faster, and one more thorough.
But is it worth it? KISS?
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- In #1645#note-28 there is a list of easy checks one might want to do on a given set of polynomial generators.
See al... -
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- List in #1647-9
Anna Maria Bigatti wrote:
> Add a function @CleanupGens@ making some more easy checks?
Moved i... -
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- I activated a test (slightly simplified test7 in test-GOperation1.C).
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- See #1326#note-10 for discussion about elim(I,X) vs elim(X,I).
Apart from this, we should only add some tests in CoC... -
- We have noticed that sometimes (with SetVerbosityLevel(100)) the time spent in "Final clean up" is quite long.
The c... -
- The SparsePolyOps files are quite focused on a specific topic.
Doc would be easier to maintain if kepts separately.
... -
- See #1783-2 : one doc file for each topic/file
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- Maybe different types:
* monomial
* principal
* univariate
* general
17 Mar 2024
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19:17 Bug #1662: txt2tags: problem with filenames containing "_" or "-"
- I have just tested with txt2tags v3 (commit bc7f2c43f1a59ea96f37c77b63c4b44fe51e1b08) and it works perfectly fine on ...
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- We must also explain what the solution is in the documentation (and perhaps also error messages?).
16 Mar 2024
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- Sorry, seems like I forgot to respond back then.
I am using the **latest** v2.7-dev.
It is important that it is the... -
- Let's try to download the new txt2tags, and test it.
*Nico* which version should we obtain?
*Anna* how do we test i... -
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- Failed to verify on Anna's old intel MacBook: compiler gave an error about @ptrdiff_t@ in some system header (sigh)
... -
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- Why such a long discussion and no resolution?
Can we finish this quickly? Or should we postpone?
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- I have added @saturate@ to the relevant header file. And also a test for #1790.
Added some doc. Do we need tests? ... -
- This may well be length to resolve properly, but I really should look at it soon.
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- I am currently unsure how useful it would be to let the caller choose a time-out in seconds.
It may be simpler to of... -
- I wonder whether it might not be better to wait until we switch to the C++20 standard, and so can use *@using ENUM@*....
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- I have just tried the example from #note-5, and it took just less than 1s on my computer (with v0.99823).
I have inc... -
- This seems to have been done already, at least mostly. So it has morally been in feedback for several month, at leas...
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- While resolving issue #1726 I needed to call some arg-check functions specifying where in the source the arg-check wa...
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- There is now a class *@ErrorContext@* and macro @CoCoA_ERROR_CONTEXT@ for recording:
* function name
* file name
*...
15 Mar 2024
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- Analogous question for @InterruptReceived@?
Note that C++20 includes something quite similar to @ErrorContext@...
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- Currently @CpuTimeOut@ expects a C-string nae of the fn.
Should it accept instead a @ErrorContext@? -
- Resolved, and checked in. But still need to so some cleaning... (sigh!)
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- The problem was that in @BuiltInFunctions-CoCoALib.C@ there was a call to @I->mySaturate(J)@ instead of @saturate(I,J...
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- Let's finish this for version 1.0
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- Anna Maria Bigatti wrote:
> Added check in the definition of NewPolyRing(K, X, WeightsMat).
> Should I rename it Ne... -
- Anna Maria Bigatti wrote:
> elim of (I,X) or (X,I)?
comparison with other functions in CoCoA/CoCoALib: (I,X) s... -
- elim of (I,X) or (X,I)?
Pro for (I,X)
# respects the rule "more structured argument first"
# like Singular/Os... -
- Anna Maria Bigatti wrote:
> New question: @elim(I, X)@ (currently in CoCoALib) or @elim(X, I)@ (traditionally in ... -
- New question: @elim(I, X)@ (currently in CoCoALib) or @elim(X, I)@ (traditionally in CoCoA)?
They have to be sa... -
- As explained in #note-7, I didn't like the first approach.
So I changed the internal functions as @J->myAssignElim(I...
14 Mar 2024
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- This is one of those mind-numbing tasks. I think I have made most of the changes, but there is still plenty of clean...
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- I'm halfway through the process, but this is tricky.
[I think this is interesting, because it's the first try in cha... -
- It seems we agree on changing this interface, so I consider this approved.
I'll go on with this, so we can proceed a... -
- Added check in the definition of NewPolyRing(K, X, WeightsMat).
Should I rename it NewPolyRingWeights? (not yet do... -
- John Abbott wrote:
> [do we require the rows to be in lin indep?]
yes -
- John Abbott wrote:
> The documentation says that if the grading-dim is not specified then it is taken to be 0. Perh... -
- John Abbott wrote:
> My current preference is to allow gradings with negative weights, and possibly linearly depende... -
- Fixed path in published pages https://cocoa.dima.unige.it/cocoa/cocoalib/doc/html/
and in @CoCoALib-0.99/doc/aux-txt... -
- I guess we just use "grep" to search in the documentation of CoCoALib, and we did not realize the Google search was b...
13 Mar 2024
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- This has been dormant for 7 years. Should we close/reject it?
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- My current preference is to allow gradings with negative weights, and possibly linearly dependent weight matrices.
T... -
- As far as I can tell we have had no problems with this over the last 10 years.
I have rectified the documentation (i... -
- The code probably needs to be redesigned: we spoke about this last time, that ideals should not be modifiable, but th...
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- The relevant source code is in *@TmpGOperations.C@* near line 864.
One problem is that an empty @PolyList@ does know... -
- It should be easy to fix these two cases. Are there any others involving the zero ideal?
Make several tests and adj... -
- The following two bugs were also present in Singular......
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- I think Anna may be proposing to store in the cone object a @RingElem@ rather than a @ring@; you can always obtain th...
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- Anna Maria Bigatti wrote:
> By Winfried Bruns:
> But how can I store RingElem in the cone? They must belong to a po... -
- By Winfried Bruns:
I have forgotten the context, but the following is a scenario that has really come up. Normaliz... -
- Tested in ex-Taylor(2). Smooth.
I also added and example (2-subsets in {0,1,2,3}) in @ex-combinatoric1.C@
12 Mar 2024
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- The documentation says that if the grading-dim is not specified then it is taken to be 0. Perhaps this is misleading...
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- I investigated and found the confusion: in the lines...
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- ...
11 Mar 2024
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- ...
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- After discussing, we think my approach makes sense. So I must look at all messages in the patch.
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- John Abbott wrote:
> *Here is a benchmark* (since there was none given earlier:
Much better now with @IsZeroDet@....
10 Mar 2024
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- Here is a list of the iterators in CoCoALib:
* *@combinatorics.C@* SubsetIter, TupleIter
* *@SparsePoly@* Sparse...
08 Mar 2024
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- I have done the tests and examples. There were a few cases where I chose to leave just *@const@* rather than replace...
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- I think I have done all instances in @src/AlgebraicCore@ and @src/CoCoA-5@. I suppose I'd better check examples & te...
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- After on-line discussion... Anna suggests: (either-or)
* *(A)* make 2 fns: one which allows duplicate points, and ... -
- We now have a first impl of *@IsZeroDet@*. Hopefully this will help!
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- Another convenient homomorphism would be a "BringIn-like" homomorphism (keeping the names of the indets: e.g. x maps ...
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- *AnnA* will look at this!
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- Verbal discussion: do not give *@MixedRings@* error. So that the two code excerpts in comment 1 are equivalent.
JAA... -
- John Abbott wrote:
> *ANNA* have you tested this?
I need to find where I wanted to use them: search in examples ... -
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- I found a good use in ex-IdealOfPoints1.C.
The comparison in readability between before and after is indeed quite st... -
- John Abbott wrote:
> I have just checked the code: it is in @MatrixView@ (as one would expect).
>
> I am not so h... -
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- This issue, as described, was rejected by answer 2 (#64#note-2).
For the other questions mentioned here, we have fol... -
- I went through all the calls of submat in CoCoALib and indeed most of them are just the first rows.
We could have an... -
- Verified that CoCoA-5 also build OK on Mac M1.
--> feedback -
- After personal discussion, we agreed on new function (until we believe a new class would be considerably better)
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- I went through all the calls of submat in CoCoALib (not so many) and indeed most of them just select the *first rows*...
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- Closing because duplicated into #1647
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- John Abbott wrote:
> Here is a list of topics we should look at:
> * fix configuration on Mac M1/M2
I think onl...
07 Mar 2024
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- Fully resolved now? Close?
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- Maybe I have understood what is upsetting the compiler.
The variable @P@ is a @ring&@, but @CoeffRing@ expects an ar... -
- Some time ago we adopted the C++14 standard. Sooner or later we shall jump to C++20 ???
The affected functions are ... -
- It is not completely clear to me what is desired. Winfried, can you clarify? Maybe give an example?
Were you able ... -
- Even the documentation mentioned about @myPushFront@ _etc_. I have slightly improved the doc.
Otherwise we can reje... -
- The new code is in *@SparsePolyOps-eval@*
The current impl is rather restricted: the polynomial has to be over @ZZ... -
- The header & source files look to be acceptably neat & tidy. So closing.
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- The relevant files are *@NumTheory-misc@*.
Tests are in *@test-NumTheory1,C@*. -
- In comment 5 above, the disadvantage that an iterator could be invalidated by a structure-changing operation to the p...
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- I think it would be nice to be able to use CoCoALib iterators with the "new" @for@ loop syntax. I note also that C++...
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- Two (unrelated) matters regarding iterators in CoCoALib:
# if we make them compatible with STL iterators then we can... -
- *ANNA* have you tested this?
01 Mar 2024
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- Anna Maria Bigatti wrote:
> Implement special version for monomial ideals
Moved to issue #1786 -
- Anna Maria Bigatti wrote:
> There is a slow test in test-RadicalMembership1 which is slower than the others and ver... -
- There is a slow test in test-RadicalMembership1 which is slower than the others and very slow with debugging on (20m...
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- A monomial version could be quite a bit faster than the general code.
But is this really needed?
Consider calling @... -
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- John Abbott wrote:
> Could it be useful to have also *@IsHomog3(I)@* which returns a @bool3@?
it could be handy t... -
- Anna Maria Bigatti wrote:
> check if there is a "homog" flag to be set
The answer is "no" (#1784). -
- See implementation of @IsHomog(I)@ in @SparsePolyOps-ideal.C@ (and #1739)
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- Should we have a "quick" bool3 function (i.e. might return @uncertain@) saying if an ideal is homogeneous?
Useful? -
- We already have...
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- Can we (= Anna) do this quickly ready for next interim release?
29 Feb 2024
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- CoCoALib now seems to compile without too many hiccups... Will check in shortly.
Not yet tried CoCoA-5
28 Feb 2024
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- Aha! The examples with @wrong output@ are *all examples* which are expected to produce output.
There are two like... -
- I have now changed all messages in the checking scripts so that they specify the full path when referring to @LogFile...
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- I'm hoping to sort this out soon... ideally by tomorrow (ha ha!). It seems I've forgotten username/password (sigh). ...
24 Feb 2024
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- A brief phone discussion with Anna yesterday suggested a vague preference for many-small-files.
But no genuine reaso... -
- Thoughts about one-big-file vs many-small-files:
For source code:
* ASSUME many-small-files means many header fil... -
- I'd like to discuss briefly the pros & cons of many-small-files and one-big-file. Currently the CoCoALib code is a m...
23 Feb 2024
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- Anna Maria Bigatti wrote:
> Still to do: check other cases.
I cannot remember what I meant.
Now seems pretty goo... -
- Implement special version for monomial ideals
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- Anna Maria Bigatti wrote:
> there is a new problem (in test-exbugs.C).
> [...]
Fixed, it was an "off-by-one" err... -
- there is a new problem (in test-exbugs.C)....
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- I made a new issue for implementing and running the tests.
Closing this one ... hoping non errors will come from the... -
- *ANNA* will test this over the next week :-)
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- There is a file with some CoCoALib tests for radical in a funny format.
Clean it up. -
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19 Feb 2024
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- Winfried sent me the following message by email:...
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