Re: [Rd] On implementing zero-overhead code reuse

on Github (distinct from CRAN’s ‹modules›!). It > looks pretty much exactly like what you want: > > https://github.com/klmr/modules > > It has an extensive README and vignette explaining the usage. > > Cheers, > Konrad > > -- > Konrad Rudolph > On Sun, 2 Oct 2016

Re: [Rd] On implementing zero-overhead code reuse

On Sun, Oct 2, 2016 at 8:01 PM, Kynn Jones <kyn...@gmail.com> wrote: > Hi Frederick, > > I described what I meant in the post I sent to R-help > (https://stat.ethz.ch/pipermail/r-help/2016-September/442174.html), > but in brief, by "zero overhead" I mean that the

Re: [Rd] On implementing zero-overhead code reuse

e getting at, but not sure. > > Thank you, > > Frederick > > On Sun, Oct 02, 2016 at 01:29:52PM -0400, Kynn Jones wrote: >> I'm looking for a way to approximate the "zero-overhead" model of code >> reuse available in languages like Python, Perl, etc. >&

[Rd] On implementing zero-overhead code reuse

I'm looking for a way to approximate the "zero-overhead" model of code reuse available in languages like Python, Perl, etc. I've described this idea in more detail, and the motivation for this question in an earlier post to R-help

Re: [Rd] R data inspection under gdb?

Thanks, that was very helpful! Kynn On Thu, Jun 25, 2009 at 6:05 PM, Martin Morgan mtmor...@fhcrc.org wrote: Hi Kynn -- (gdb) call Rf_PrintValue(x) 'void' is I think the return value of R_PV() Martin Kynn Jones wrote: Hi, everyone. I'm trying to debug an R-module, written in C

[Rd] bug in Rf_PrintValue ?

I'm very green with R, so maybe this is not a bug, but it looks like one to me. The following program segfaults at the second call to Rf_PrintValue(). To failure depends on the value of the y-string. E.g., if I change it from coverage to, say, COVERAGE, the segfault does not occur. /* bug.c */

[Rd] ScalarLong?

I was surprised to see that there is a ScalarInteger function in Rinlinedfuns.h, but nothing like ScalarLong. How can one create an R-integer from a C long? TIA! kynn [[alternative HTML version deleted]] __ R-devel@r-project.org mailing list

[Rd] conditional dependencies loading

Hi! I'm working on a package that must convert data to and from JSON. For this, it can use either the rjson package, or preferably, the faster RJSONIO package. I have two related questions about this. First, how can I specify that the package depends on *either* RJSONIO *or* rjson? (I.e. both

[Rd] Issues converting from JSON to R

When converting from JSON to R it seems logical that a JSON array would correspond to an unnamed R list, while a JSON object would correspond to a named R list. E.g. JSON: [1, 3.1415927, foo, false, null] = R: list(1, 3.1415927, foo, FALSE, NA); and JSON { int: 1, float: 3.1415927, string:

[Rd] How to explore R internals through gdb?

Hi everyone. I'm trying to learn my way around the R internals. I've gone pretty much as far as I can go with the information given in Writing R Extensions and R Internals, but I still have a lot of questions, too many in fact to post them to the r-devel list. But I think I could answer many of

Re: [Rd] need help with libtool/aclocal error

On Sat, Jun 6, 2009 at 5:58 AM, Prof Brian Ripley rip...@stats.ox.ac.uk wrote: ...or just updating tools/ltmain.sh from https://svn.r-project.org/R/branches/R-2-9-branch/tools/ltmain.sh and re-configuring and re-making R. Thanks, that worked like a charm.

[Rd] Qs on calling R from C

Consider the following simple C program: /*** hello_r.c ***/ #include Rinternals.h SEXP hello() { return mkString(Hello, world!\n); } int main(void) { SEXP x = hello(); return x == NULL; /* i.e. 0 on success */ } This program segfaults: % myR/bin/R CMD LINK gcc

Re: [Rd] Qs on calling R from C

On Sat, Jun 6, 2009 at 5:31 PM, Dirk Eddelbuettel e...@debian.org wrote: Try reading 'R Extensions' section 8.1 entitled 'Embedding R under Unix-alikes'. That was just what I needed! All it took was adding a single line before the call to mkString (and adding one more header file):

[Rd] need help with libtool/aclocal error

I'm trying to build an executable for a program I wrote. The compilation steps go well, but the linking step fails with a libtool version mismatch error. My linking command has this prefix: /path/to/R/bin/R CMD LINK gcc -g -std=gnu99 ... etc. The error looks like this: libtool: Version

[Rd] How to generate R objects in C?

I'm in the process of coding a parser (in C) to generate R entities (vectors, lists, etc.) from a text description (different from R). The basic parser works, and now I need to tell it how to create R entities. I need to be able to create character vectors (for unicode strings), integers, floats,

[Rd] Can a function know what other function called it?

Suppose function foo calls function bar. Is there any way in which bar can find out the name of the function that called it, foo? There are two generalization to this question that interest me. First, can this query go farther up the call stack? I.e. if bar now calls baz, can baz find out the

Re: [Rd] Can a function know what other function called it?

On Sat, May 23, 2009 at 4:55 PM, Robert Gentleman rgent...@fhcrc.org wrote: Hi Kynn, Kynn Jones wrote: Suppose function foo calls function bar.  Is there any way in which bar can find out the name of the function that called it, foo?  essentially yes. You can find out about the call stack

[Rd] Qs: The list of arguments, wrapping functions...

Hi. I'm pretty new to R, but I've been programming in other languages for some time. I have a couple of questions regarding programming with function objects. 1. Is there a way for a function to refer generically to all its actual arguments as a list? I'm thinking of something like the @_ array

Re: [Rd] Qs: The list of arguments, wrapping functions...

Thanks for your replies! The will require some study on my part, which is good: a lot to learn. KJ [[alternative HTML version deleted]] __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel