Le 17/04/2018 à 17:53, Dirk Eddelbuettel a écrit :
On 17 April 2018 at 10:31, Dirk Eddelbuettel wrote:
|
| On 17 April 2018 at 15:09, Serguei Sokol wrote:
...
| | It will automatically coerce NULL to a declared vector type.
| | It's a more primitive solution than Nullable but in many cases
| |
I may be missing something here but
it doesn't seem right to introduce silent coercion of NULL to vectors, etc.,
especially if it would become imposed on everybody using Rcpp/Armadillo.
Even the "convenience" of this is questionable.
Georgi Boshnakov
-Original Message-
From: rcpp-de
The Eigen tensor module (easily available via RcppEigen as far as I can
tell) might be worth a look:
http://eigen.tuxfamily.org/index.php?title=Tensor_support
On Wed, Apr 18, 2018 at 3:13 AM, Dirk Eddelbuettel wrote:
>
> On 18 April 2018 at 01:56, Avraham Adler wrote:
> | May not be possible. Se
On 18 April 2018 at 10:26, Georgi Boshnakov wrote:
| I may be missing something here but
| it doesn't seem right to introduce silent coercion of NULL to vectors, etc.,
| especially if it would become imposed on everybody using Rcpp/Armadillo.
| Even the "convenience" of this is questionable.
Le 18/04/2018 à 12:26, Georgi Boshnakov a écrit :
I may be missing something here but
it doesn't seem right to introduce silent coercion of NULL to vectors, etc.,
especially if it would become imposed on everybody using Rcpp/Armadillo.
Nothing is imposed. Everyone will be free to use Nullable me
Le 18/04/2018 à 13:32, Dirk Eddelbuettel a écrit :
On 18 April 2018 at 10:26, Georgi Boshnakov wrote:
| I may be missing something here but
| it doesn't seem right to introduce silent coercion of NULL to vectors, etc.,
| especially if it would become imposed on everybody using Rcpp/Armadillo.
|
Serguei,
(Extra line breaks help readibility on text only mail readers)
On 18 April 2018 at 14:51, Serguei Sokol wrote:
| Le 18/04/2018 à 12:26, Georgi Boshnakov a écrit :
| > I may be missing something here but
| > it doesn't seem right to introduce silent coercion of NULL to vectors, etc.,
| >
Regarding:
"Actually, when NULL is provided to where a vector or a matrix is expected just
an error is thrown. So we can hardly imagine that someone would have his
program broken or will be misled if such coercion is introduced."
If all programs were perfect this would be true, but the ability
Le 18/04/2018 à 15:59, Dirk Eddelbuettel a écrit :
Could you use XPtr ?
Probably yes, as I could use Nullable<> too. But at what price?
For me, the code would become far less readable.
Serguei.
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Le 18/04/2018 à 16:15, Jeff Newmiller a écrit :
Regarding:
"Actually, when NULL is provided to where a vector or a matrix is expected just an
error is thrown. So we can hardly imagine that someone would have his program broken or
will be misled if such coercion is introduced."
If all programs
I updated my g++ and gcc versions and installed the appropriate libgfortran -
when I tried to overwrite packages / reinstall - it still had ERRORs
if I completed destroyed my local library and started from scratch the
segfaults disappeared.
seems like a drastic work around but I'll take wor
as.numeric( NULL ) is not silent, it is very explicit.
Re this not being a C++ NULL, I don't object to R NULL being used that way (in
fact it may be more sensible to do this than not, but it is not clear that R
core thinks this way).
On April 18, 2018 9:53:12 AM CDT, Serguei Sokol wrote:
>Le
Le 18/04/2018 à 17:31, Jeff Newmiller a écrit :
as.numeric( NULL ) is not silent, it is very explicit.
Well, written in this way yes. But I was referring more to the content
than to the form. If you write as.numeric(x) and at some run-time point
x become NULL, the code won't stop with an error.
On 18 April 2018 at 15:14, Shepherd, Lori wrote:
|
| I updated my g++ and gcc versions and installed the appropriate libgfortran -
|
| when I tried to overwrite packages / reinstall - it still had ERRORs
|
| if I completed destroyed my local library and started from scratch the
segfaults dis
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