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...ot; { #endif ... #ifdef __cplusplus } #endif 2. change the line R_new_altrep(R_altrep_class_t class, SEXP data1, SEXP data2); to R_new_altrep(R_altrep_class_t cls, SEXP data1, SEXP data2); since C++ doesn't like an argument named 'class' ~~ Michael Sannella [[alternative HTML version deleted]]

...ot;2",..."10",... is not sorted. I suspect that the problem is that the Is_sorted method for deferred_string is just calling the Is_sorted method for the source object 1:100 (which _is_ a sorted integer vector). It should probably just return NA for any source object. ~~ Michael Sannella [[alternative HTML version deleted]]

...=3. It does not happen if the serialization is done with ascii=FALSE. Note that 0x29 == 41. It looks like unserialize is reading the wrong line. I tried this in earlier versions of R on Windows, and the same error happens in every version from R-2.15.3 (the earliest I have) on up. ~~ Michael Sannella [[alternative HTML version deleted]]

...hat you probably wouldn't want to change the deferred_string structure. An alternative fix would be to avoid this case by: 1. Never create a deferred_string if OutDec is not '.'. 2. When expanding an element of a deferred_string, temporarily set OutDec to '.'. ~~ Michael Sannella [[alternative HTML version deleted]]

...5 6 7 8 9 10 > save(x, file="temp.rda", version=3) > load(file="temp.rda") > x [1] 1 2 3 4 5 6 7 8 9 10 > I would have expected the modified vector data to be serialized to the file, and be restored when it is loaded. ~~ Michael Sannella [[alternative HTML version deleted]]

Thanks for the report. The approach you outlines below should work -- I'll look into it. Best, luke On Mon, 8 Oct 2018, Michael Sannella wrote: > While implementing R's new 'altrep' functionality in the TERR engine, > I discovered a bug in R's 'deferred_string' altrep object: it is not > using the correct value of the 'OutDec' option when it expands a > deferred_string.? See the following...

...What he does as a workaround is #define class klass extern "C" { #include <R_ext/Altrep.h> } #undef class While we consider changing Altrep.h, the above should work for you in the immediate term. Let me know if it doesn't. ~G On Mon, Oct 8, 2018 at 4:17 PM, Michael Sannella via R-devel < r-devel at r-project.org> wrote: > I am not able to #include "R_ext/Altrep.h" from a C++ file. I think > it needs two changes: > > 1. add the same __cplusplus check as most of the other header files: > #ifdef __cplusplus > extern "C&qu...

...ary the error message by varying the entries in the vector, but the gist of it is that something gets misinterpreted and the rest of the data stop making sense. I also tried going explicitly through a text connection, and that seems exactly equivalent. -pd > On 7 Nov 2018, at 23:35 , Michael Sannella via R-devel <r-devel at r-project.org> wrote: > > I ran into an interesting error unserializing a file created with > ascii=TRUE: > > R 3.5.1 (Windows or Linux): >> unserialize(serialize(list(raw=as.raw(c(39,41))), NULL, version=2, > ascii=TRUE)) > Error in uns...

...ric scale argument is now checked to be positive and allowed to be of length > 1. (The latter worked originally and with a warning in recent years). * Deferred string conversions now record the OutDec option setting when not equal to the default. Reported by Michael Sannella. * When y is numeric and f a factor, plot(y ~ f) nicely uses "y" and "f" as y- and x-labels. The more direct boxplot(y ~ f) now does too. The new argument ann = FALSE may be used to suppress these. * Subassignment to no/empty rows of a data frame is more...

...ric scale argument is now checked to be positive and allowed to be of length > 1. (The latter worked originally and with a warning in recent years). * Deferred string conversions now record the OutDec option setting when not equal to the default. Reported by Michael Sannella. * When y is numeric and f a factor, plot(y ~ f) nicely uses "y" and "f" as y- and x-labels. The more direct boxplot(y ~ f) now does too. The new argument ann = FALSE may be used to suppress these. * Subassignment to no/empty rows of a data frame is more...

...ric scale argument is now checked to be positive and allowed to be of length > 1. (The latter worked originally and with a warning in recent years). * Deferred string conversions now record the OutDec option setting when not equal to the default. Reported by Michael Sannella. * When y is numeric and f a factor, plot(y ~ f) nicely uses "y" and "f" as y- and x-labels. The more direct boxplot(y ~ f) now does too. The new argument ann = FALSE may be used to suppress these. * Subassignment to no/empty rows of a data frame is more...