[Rcpp-devel] bug with DatetimeVector ?

[stat quant]

Dirk,
that's strange but your code crases on my box too...

The only thing out of the ordinary might be that mt R is 3.0.0 and when I
load Rcpp I get "le package ‘Rcpp’ a été compilé avec la version R 3.0.1 "

Regards

2013/7/19 stat quant <statquant at outlook.com>

> Right 2 lines were missing:
>
> C++:
>
> #include <Rcpp.h>
> using namespace Rcpp;
>
> //[[Rcpp::export]]
> void bug(DataFrame df){
>  DatetimeVector dt = df["dt"];
> }
>
> R:
>
> library("Rcpp")
> sourceCpp("rcpp2.cpp")
> df <-
> data.frame(x=c(1L,NA,2L), dt=as.POSIXct(c(1L,NA,2L),origin='1970-01-01'))
> print(df)
> bug(df)
> ##here R crashes##
>
> 2013/7/19 Dirk Eddelbuettel <edd at debian.org>
>
>>
>> On 19 July 2013 at 14:05, stat quant wrote:
>> | Hello list, I might have found a bug, would you mind checking it too?
>>
>> No, you didn't. See below.
>>
>> | In R:
>> |
>> | library("Rcpp")
>> | sourceCpp("rcpp.cpp")
>> | df = data.frame(x=c(1L,NA,2L),
>> dt=as.POSIXct(c(1L,NA,2L),origin='1970-01-01'))
>> |
>> | df
>> |    x                  dt
>> | 1  1 1970-01-01 00:00:01
>> | 2 NA                <NA>
>> | 3  2 1970-01-01 00:00:02
>> |
>> | In C++
>> |
>> | //[[Rcpp::export]]
>> | void bug(DataFrame df){
>> |     DatetimeVector dt = df["dt"];
>> | }
>>
>> That __obviously__ does not compile (no header, no namespace, ...) so I
>> think
>> you are being sloppy.
>>
>> Execution of a __repaired and reproducible__ example, first via littler
>> then
>> via R:
>>
>>
>> edd at don:~$ r -lRcpp -e'sourceCpp("/tmp/statquant.cpp")'
>>
>> > df <- data.frame(x=c(1L,NA,2L),
>> +                  dt=as.POSIXct(c(1L,NA,2L),origin='1970-01-01'))
>>
>> > print(df)
>>    x                  dt
>> 1  1 1969-12-31 18:00:01
>> 2 NA                <NA>
>> 3  2 1969-12-31 18:00:02
>>
>> > bug(df)
>>
>> > cat("Hello world\n")
>> Hello world
>> edd at don:~$ R -q -e 'Rcpp::sourceCpp("/tmp/statquant.cpp")'
>> R> Rcpp::sourceCpp("/tmp/statquant.cpp")
>>
>> R> df <- data.frame(x = c(1, NA, 2), dt = as.POSIXct(c(1,
>> +     NA, 2), origin = "1970-01-01"))
>>
>> R> print(df)
>>    x                  dt
>> 1  1 1969-12-31 18:00:01
>> 2 NA                <NA>
>> 3  2 1969-12-31 18:00:02
>>
>> R> bug(df)
>>
>> R> cat("Hello world\n")
>> Hello world
>> R>
>> R>
>> edd at don:~$
>>
>> A complete cpp snippet follows below.  Please construct better examples
>> that
>> actually __work__ next time, test them on __fresh sessions__ and consider
>> including the R test code in the C++ snippet as I do here.  Oh, and stop
>> using the hidous '=' for assignment in R ;-)
>>
>> Dirk
>>
>>
>> -----------------------------------------------------------------------------
>>
>> #include <Rcpp.h>
>>
>> using namespace Rcpp;
>>
>> //[[Rcpp::export]]
>> void bug(DataFrame df){
>>     DatetimeVector dt = df["dt"];
>> }
>>
>> /*** R
>> df <- data.frame(x=c(1L,NA,2L),
>>                  dt=as.POSIXct(c(1L,NA,2L),origin='1970-01-01'))
>> print(df)
>> bug(df)
>> cat("Hello world\n")
>> */
>>
>> -----------------------------------------------------------------------------
>>
>>
>>
>> |
>> | Executing bug(df) in R crashes the R session on my box
>> |
>> | sessionInfo()
>> | R version 3.0.0 (2013-04-03)
>> | Platform: x86_64-w64-mingw32/x64 (64-bit)
>> | locale:
>> | [1] LC_COLLATE=French_France.1252  LC_CTYPE=French_France.1252
>> |  LC_MONETARY=French_France.1252 LC_NUMERIC=C
>> | LC_TIME=C
>> | attached base packages:
>> | [1] stats     graphics  grDevices datasets  utils     methods   base
>> |
>> | other attached packages:
>> | [1] Rcpp_0.10.4  vimcom_0.9-8
>> | loaded via a namespace (and not attached):
>> | [1] tools_3.0.0
>> |
>> | Regards
>> |
>> | ----------------------------------------------------------------------
>> | _______________________________________________
>> | Rcpp-devel mailing list
>> | Rcpp-devel at lists.r-forge.r-project.org
>> | https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
>> --
>> Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
>>
>
>
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