similar to: Strange behavior of debugger

Hi, I'm looking for a most efficient way to call an R function from C++ in a package. I know there are two functions (`R_forceAndCall` and `Rf_eval`) that can do the "call" part, but both are slow compared to calling the same function in R. I also try to use Rcpp and it is the worse one. Here is my test code: C++ code: ``` // [[Rcpp::export]] SEXP C_test1(SEXP f, SEXP x) { SEXP

For reference, your benchmark using UNWIND_PROTECT: > system.time(test(testFunc, evn$x)) user system elapsed 0.331 0.000 0.331 > system.time(test(C_test1, testFunc, evn$x)) user system elapsed 2.029 0.000 2.036 > system.time(test(C_test2, expr, evn)) user system elapsed 2.307 0.000 2.313 > system.time(test(C_test3, testFunc, evn$x)) user system

Hi: I am trying to implement interval arithmetic through llvm. I have a problem with the rounding mode with llvm.experimental.constrained.cos I have two pieces of codes: ; Function Attrs: norecurse nounwind readnone ssp uwtable define double @cosine_down(double returned) local_unnamed_addr #0 {   ; call the llvm intrinsic to perform downward cosine

** Sorry to repost. I forgot to include a function necessary to make the example work ** I apologize up front for this being a little long. I hope it's understandable. Please let me know if I need to clarify anything. Several months ago I wrote a series of functions to help me take my R analyses and build custom reports in html files. Each function either builds or modifies a string of

Dear People, I wrote the following bit of C code and (along with other bits) called it mycode.c, and compiled the file into a shared library to load into R, using R CMD SHLIB mycode.c. This was Ok, but when I tried to load this into R using dyn.load("mycode.so") I got the error > dyn.load("mycode.so") Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to

Hey, I don;t know if anyone has come across this error before... I am running R on the terminal of my MAC OS X 10.3.4 and I have written C code and compiled it using R CMD SHLIB mycode.c There were no problems in compiling so I now have mycode.o and mycode.so. I used dyn.load("mycode.so") and again, no problems. But when I try to use the code .C("mycode",x)

a) you need to read the help pages on the paste function... more likely you are looking for the paste0 function because extra spaces will most likely break the GET request format. b) quotes do not become "stuck" as \" ... that is a visual representation intended to clarify that that quote is not terminating the string but is actually part of it. If you want to see the contents

I've recently been looking at how to implement in LLVM IR the rounding of floating point values when casting using different rounding modes and I've hit some problems. It seems that when casting down floats to less precise types the ``fptrunc`` LLVM IR instruction is used. The LLVM language reference suggests that it just truncates the value (which would be equivalent to rounding towards

Hi All, as I can see on https://github.com/defunkt/unicorn/blob/master/lib/unicorn.rb#L53 the?Rack::CommonLogger used only in development env and in weird evn called "deployment". Any chance to add "production" to this case? Serg Podtynnyi

hi all - i have a source package i'm writing that i'd like to be able to install with a special library that my R src files rely on. to be more precise, i have a normal R package directory structure (i.e. src/ R/ man/ DESCRIPTION NAMESPACE etc.). i also have another directory here called depPkg, and it has it's own configure file for the canonical './configure && make

Hi, I have a dataset which has var1 from 1 sourse and var2 from 2 different methods. I need a new variable such that var2 values from both methods can beused as 1 variable. I believe deming regression can be used to do this. I just don't know how to do it. My data looks like: idvar1var2method1var2method2 11.22.1NA 21.62.4NA 31.52.2NA 41.3NA2.8 51.6NA3.1 61.4NA2.7 Please help. Sincerely,

Dear Sir/Madam, I am a phd student and I am trying to implement a new approach for the knot selection procedure in MARS algorithm. In order to apply and test the efficiency of my method, is it possible to get the code (sourse) of "earth" library? Thank you for your interest and concern. Best Wishes, Elcin Kartal, Research Assistant Department of Statistics Middle East Technical

Hi all: I have a situation where I need to change the distribution of emails for selected accounts on a regular basis. This is for the controlling of the distribution of our "support" email address. In the past I just created a "alias.bas" file to hold the bulk of our aliases and then 3 "support" alias files, alias.wkd, alias.evn and alias.wed (for weekday, evening

Hi Craig: I tried that, now the function is like this: ; Function Attrs: norecurse nounwind readnone ssp uwtable define { double, double } @add(double, double, double, double) local_unnamed_addr #0 {   %5 = call double @llvm.experimental.constrained.fadd(double %0, double %2, metadata !"round.downward", metadata !"fpexcept.ignore")   %6 = fadd double %1, %3

Thank you for your help in advance. I am trying to pull some data back from a web service library(httr) sample2 <- GET("https://elevation.mapzen.com/height?json={\"range\":false,\"shape\":[{\"lat\":40.7,\"lon\":-76.5}]}&api_key=mycode") result2 <- content(sample2) height <- result2$height[[1]] I would like to put by own latitude

Dear Guys; I am very beginner of Icecast, but I already setup several icecast servers with MP3 audio music broadcasting with icecast2 (2.4) and BUTT or ices as source clients. Those are works well for almost one year already. I tried to make video casting with icecast2 (2.4) and VLC media player as a source client, but icecast never recognize VLC as a source. icecast.xml had set just same as I

Hi: Sorry I need to send email directly. I am new to llvm and trying to write interval arithmetic, which requires changing rounding mode during computation. The document I found https://llvm.org/docs/LangRef.html#constrained-floating-point-intrinsics, seems to be doing the trick. Here is the piece of code that I did:

I have tried to invoke a transformation/optimization pass using -mllvm, without success. I might be missing something. For example I have a shared/dynamic library which contains LLVM passes. I used to invoke them with llvmc like this: >>*llvmc mycode.c -o mycode.o -c -opt -Wo,=-load,libFoo.dylib,-Foo* Can this style of optimization be executed using -mllvm argument? Thx, PMon On Sun,

I'm trying to use mars{mda} to model functions that look fairly close to a sequence of straight line segments. Unfortunately, 'mars' seems to totally miss the obvious places for the knots in the apparent first order spline model, and I wonder if someone can suggest a better way to do this. The following example consists of a slight downward trend followed by a jump up after

Hi Craig: It’s llvm 10.1 I think, I did the same thing, removing everything except the code block but still failed with llvm-as. Thank you Xuan Tang On Sep 3, 2020, 20:14 -0500, Craig Topper <craig.topper at gmail.com>, wrote: > I just pasted that code and ran it through llc, opt, and llvm-as. All passed without issue. What version of llvm are you using? > > ~Craig > > >