Activity
From 27 May 2016 to 25 Jun 2016
25 Jun 2016
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21:54 CoCoALib Design #789: NumTheory: behaviour of InvMod when inverse does not exist
- In this case I think that the "backward compatibility" aspect is of relatively little importance.
If someone has use... -
- This has largely been completed; there remains only the mystery as to why @SimplestBigRatBetween@ is too slow -- this...
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- Investigations in issue #860 showed that @SimplestBigRatBetween@ was mysteriously slower than expected (and than an e...
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- I note there could be a "mild inconsistency" in the @RingTwinFloat@ implementation: let @N@ be a @BigInt@ and @x@ a t...
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- Here are the new mem fns which every ring would have to offer:
* @myIsEqual(RingElem, MachineInt)@
* @myIsEqual(Rin... -
- Here are some pros and cons:
* *(+)* avoid making temporary ring-elem values (wasteful new-delete cycle);
* *(+)* s... -
- Currently all comparisons between a @RingElem@ and a @MachineInt@ (or @BigInt@ or @BigRat@) entails first converting ...
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- I have updated the documentation for @RingTwinFloat@.
In practice the current impl of @myCmp@ deals first with the... -
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- This has been in feedback for 3 months without any reports of problems.
Apparently the (new-ish?) test @test-Ordered... -
- I have added a new test (@test-bug7.C@) for this issue.
Since there have been no problems for 3 months, I am closing... -
- I have just tried a quick experiment comparing speeds: let @N := 10^(10^9);@
* @NumDigits(N,10)@ takes less than 0....
24 Jun 2016
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- Which variants of @NumDigits@ should exist and what should they be called?
* base 10 possible name @NumDigits10@
*... -
- The GMP function is guaranteed to be fast (very fast!).
The correct definition is @NumDigits(N,base) = 1 + FloorLo... -
- @NumDigits@ is a direct call to the CoCoALib fn called @NumDigits@ which is a direct call to the GMP fn @mpz_sizeinba...
22 Jun 2016
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- Anna says it seems to work mostly OK for her (on emacs 22 or 23). She did report a problem with sending only part of...
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- I have looked on the internet for "clever" ways to make our code compatible with both C++03 and C++11 (using @auto_pt...
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- Just a quick note about doing a global replacement of @auto_ptr@ by @unique_ptr@. Open all files in emacs, then use ...
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- I have just globally replaced @auto_ptr@ with @unique_ptr@.
Just 1 line in @TmpJBMill.C@ needed to be changed to get...
21 Jun 2016
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- Apparently C++11 offers "strongly typed enum" which do not have automatic conversion to integer values.
This seems... -
- On the other hand, if we choose not to be "clever" then we can use normal (inline?) functions which always evaluate a...
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- I would like that the definitions of @and3@ and @or3@ behave just like the built-in logical operators @operator&&@ an...
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- Here are the files which use @std::auto_ptr@:
@GlobalManager.H@
@MemPool.H@
@SparsePolyRing.H@
@SugarDegree.H@
@...
20 Jun 2016
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15:01 CoCoALib Design #849: Cleanup MinPoly code
- The function @MinPoly@ (and @MinPolyQuot@) should be straight calls to @MinPolyDef/MinPolyDefQuot@
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- The current functions should be renamed @MinPolyXXQuot(f, I, z)@
17 Jun 2016
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- A quick check we should do is to string-replace all @auto_ptr@ with @unique_ptr@ and see if the code compiles cleanly...
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- Obviously we are not the first to encounter this problem.
My understanding is that @std::unique_ptr@ is intended a... -
- Compiling CoCoALib with @--std=c++11@ produces lots of warnings about @std::auto_ptr@ being deprecated
Reportedly ... -
- We have these (for short lists)...
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- What is the difference between issues #82 and #83 (this one)?
16 Jun 2016
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- What is the status of this issue?
I'm hoping it can be closed quickly and easily for the next (imminent) release.
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- What is the answer to the original question?
Comment 1 proposed an answer, and asked for discussion. The other co... -
- As reported in issue #842 execution speed is sometimes very disappointing, so currently it may not be such a good ide...
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- We could also offer 2 functions: @InvMod@ which throws, and @InvModNoThrow@ which returns 0.
To maintain backward ... -
- I have a possible solution: I have copied @comint-get-old-input-default@ into @cocoa5.el@ then edited it so that it a...
15 Jun 2016
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- A possible work-around seems to be to set @comint-use-prompt-regexp@ to @t@.
The implementation of @comint-get-old... -
- This continues to bother me; it seems to be a "feature" of emacs 24.5 (on several machines).
Strangely I looked on i... -
- I have confirmed that both examples still trigger @ERR::SERIOUS@ with 5.1.5 on CoCoALib 0.99543.
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- Here is a simple test case:...
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- I am guessing that @ImportByRef@ and @ImportByValue@ may be used only for importing local variables in an outer lexic...
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- While @TopLevel@ and @ImportByRef@ are very similar there is a difference: namely, that @TopLevel@ will search only i...
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- While cleaning, I found some old CoCoA-5 "bugs". In this case there are two simple examples where @ImportByRef@ give...
14 Jun 2016
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- John Abbott wrote:
> In fact, I would be tempted to make the version which needs @libblas@ less immediately obvious;...
13 Jun 2016
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- Until we resolve this issue I would suggest making publicly available a minimal version of CoCoA-5 which does not dep...
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- I have modified the @configure@ script so that the last line of output recalls all warnings. It seemed to work for M...
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- The CoCoALib @configure@ script can produce warnings during its execution, however these easily become invisible/igno...
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- I have modified the @readline@ scripts so that they accept only absolute paths as input. Recall that there can be pr...
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- I have hacked the various scripts, and now it works on my MacBook.
However, I have just re-read the earlier commen... -
- Some scripts contain the source code inside themselves (as here-documents), others rely on an external existing (in a...
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- Another advantage of using @/tmp@ is that scripts no longer need to test whether they are being run from the CoCoA ro...
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- After waiting for several configure-make cycles to complete on the fixed machine here in Kassel, I have concluded tha...
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- I have opened issue #889 which should resolve this issue (if my understanding of the problem is correct, namely that ...
10 Jun 2016
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- John Abbott wrote:
> Can you tell your compiler (clang/llvm) to use the old standard? You will have to look in the ... -
- Can you tell your compiler (clang/llvm) to use the old standard? You will have to look in the documentation to see h...
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- I've found this ;-)
[[https://github.com/Macaulay2/M2/issues/66]]
I copy here the reply from Bjarke Roune
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- I do not recognise the error message you have posted.
Do you have to tell your compiler to use the C++03 standard ... -
- John Abbott wrote:
> OK, I have change the documentation. Could you check to see if it makes sense?
I believe I ... -
- OK, I have changed the documentation. Could you check to see if it makes sense?
08 Jun 2016
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- Could you write the changes in the documentation @ExternalLibs-Frobby.txt@?
06 Jun 2016
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- Unfortunately there are probably some places where backslash-newline cannot be blindly inserted without changing the ...
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- I have just checked what happens with @bash@ (which also uses the backslash-newline convention): it may appear inside...
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- I was surprised not to find this issue already in redmine; I'm sure we have talked about it (in the distant past... p...
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- Some languages allow long lines to be split into several "physical lines" by inserting an escaped-newline which is si...
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- I have taken one of Mario's big polys: this one is about 6Mbyte when printed out.
I tried to ways of converting th... -
- The solution to use @ReadExpr(P, "poly-as-a-string")@ works tolerably well from the point of view of the interpreter,...
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- For aesthetics: now changes sign to the LinKer matrix (so that the entries corresponding to the "pivots" are "1" inst...
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- John Abbott wrote:
> I like the idea of adding some hints about compiling external libraries. I already have some n... -
- I like the idea of adding some hints about compiling external libraries. I already have some notes (but perhaps they...
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- The warnings about infinite recursion correspond to code which has a comment @BUG BUG BUG@; I suppose I'll fix it wh...
01 Jun 2016
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- CoCoA-5 running!!...
31 May 2016
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- ... another thing I don't really know the meaning of:...
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- I expect this is well under control ;-)...
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- ... I'm not quite sure what this refers to......
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- *This is just a local problem with files not in cvs*
The file @/include/CoCoA/TmpSBStats.H@ contains the line... -
- I've just updated to MacOS 10.11 (from 10.6).
Here I note the problems and remarks on the first compilations.
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