Displaying 6 results from an estimated 6 matches for "chkzln".
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2024 Jun 08
1
changes in R-devel and zero-extent objects in Rcpp
...ty.
Details/diagnosis for the issues in the lme4 package are here:
https://github.com/lme4/lme4/issues/794, with a bit more discussion
about how zero-length objects should be handled.
The short(ish) version is that r86629 enables the
CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
<https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104>,
which returns a trivial pointer (rather than the data pointer that would
be returned in the normal control flow) if an object has length 0:
/* Attempts to read or write el...
2024 Jun 08
1
changes in R-devel and zero-extent objects in Rcpp
...osis for the issues in the lme4 package are here:
> https://github.com/lme4/lme4/issues/794, with a bit more discussion
> about how zero-length objects should be handled.
>
> The short(ish) version is that r86629 enables the
> CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
> <
> https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104>,
>
> which returns a trivial pointer (rather than the data pointer that would
> be returned in the normal control flow) if an object has length 0:
>
>...
2024 Jun 08
1
changes in R-devel and zero-extent objects in Rcpp
...om/lme4/lme4/issues/794
> <https://github.com/lme4/lme4/issues/794>, with a bit more discussion
> about how zero-length objects should be handled.
>
> ? ?The short(ish) version is that r86629 enables the
> CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
> <https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104 <https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104>>,
> which returns a trivial pointer (rather...
2024 Jun 09
1
[External] Re: changes in R-devel and zero-extent objects in Rcpp
...gt; <https://github.com/lme4/lme4/issues/794>,
>> with a bit more discussion
>> about how zero-length objects should be handled.
>>
>> ? ?The short(ish) version is that r86629 enables the
>> CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
>> <https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104
>> <https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104>>,
>> which returns a trivia...
2024 Jun 09
1
[External] Re: changes in R-devel and zero-extent objects in Rcpp
...ub.com/lme4/lme4/issues/794>,
> >> with a bit more discussion
> >> about how zero-length objects should be handled.
> >>
> >> The short(ish) version is that r86629 enables the
> >> CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
> >> <
> https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104
> >> <
> https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104
> >>,
> >...
2024 Jun 10
1
changes in R-devel and zero-extent objects in Rcpp
.../lme4/lme4/issues/794>, with a bit more
discussion
> > about how zero-length objects should be handled.
> >
> > ? ?The short(ish) version is that r86629 enables the
> > CATCH_ZERO_LENGTH_ACCESS definition. This turns on the CHKZLN macro
> >
<https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104
<https://github.com/r-devel/r-svn/blob/4ef83b9dc3c6874e774195d329cbb6c11a71c414/src/main/memory.c#L4090-L4104>>,
> > which returns a...