similar to: [LLVMdev] LLVMGetPointerToFunction

dear members, I am using R to model stock prices but a slow "for" loop has stifled my research. I am using Rcpp to speed up my "for" loop. I am also using RcppEigen to implement block operations on xts objects..... how do I use RcppEigen? If I just load it by: > require(RcppEigen) it is not recognising the .block method in C++. If I include it inside

On 03/02/2015 04:37 PM, Martin Maechler wrote: > >> On 2 March 2015 at 09:09, Duncan Murdoch wrote: >> | I generally recommend that people use Rcpp, which hides a lot of the >> | details. It will generate your .Call calls for you, and generate the >> | C++ code that receives them; you just need to think about the real >> | problem, not the interface. It has its

On 2 March 2015 at 16:37, Martin Maechler wrote: | | > On 2 March 2015 at 09:09, Duncan Murdoch wrote: | > | I generally recommend that people use Rcpp, which hides a lot of the | > | details. It will generate your .Call calls for you, and generate the | > | C++ code that receives them; you just need to think about the real | > | problem, not the interface. It has its own

On 2 March 2015 at 09:09, Duncan Murdoch wrote: | I generally recommend that people use Rcpp, which hides a lot of the | details. It will generate your .Call calls for you, and generate the | C++ code that receives them; you just need to think about the real | problem, not the interface. It has its own learning curve, but I think | it is easier than using the low-level code that you need to

Dear R-Developers, I just started learning how to use Rcpp. Earlier while using it, I encountered an error as shown below: file74d8254b96d4.cpp: In function ‘Rcpp::NumericVector foo(Rcpp::NumericVector, Rcpp::NumericVector, Rcpp::NumericVector, Rcpp::Function, Rcpp::Function)’: file74d8254b96d4.cpp:10: error: invalid operands of types ‘SEXPREC*’ and ‘R_len_t’ to binary ‘operator/’ make: ***

Oops, missed initializing some stuff. Added: LLVMLinkInMCJIT(); LLVMInitializeNativeTarget(); LLVMInitializeNativeAsmPrinter(); LLVMInitializeNativeAsmParser(); Now it crashes in LLVMGetFunctionAddress(). Hmm. On Wed, Mar 8, 2017 at 5:14 PM, Toshiyasu Morita <toshi at tensyr.com> wrote: > Made it a bit further. Here's the current code: > >

Hi, I have a IR file generated by Clang: ; ModuleID = 'test_load_lib.c' target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S32" target triple = "i686-pc-mingw32" declare i32 @a_outside_func(i32) define i32 @test_func() { entry: %call = call i32

Or do you mean I need to load the module into memory before calling LLVMGetBitcodeModuleInContext2? > Yes, you need to load the module into memory first. > LLVMCreateMemoryBufferWithContentsOfFile will do that for you. Thanks! On Wed, Mar 8, 2017 at 3:48 PM, Friedman, Eli <efriedma at codeaurora.org> wrote: > On 3/8/2017 3:44 PM, Toshiyasu Morita wrote: > > >>

Hello I quite thank you for your advice,but I have to tell that it made no difference too calling "LLVMAddGlobalMapping(ee,LLVMGetNamedFunction(m,"_a_outside_func"),(void*)(&a_outside_func));". 2014-04-04 16:10 GMT+08:00 Anton Korobeynikov <anton at korobeynikov.info>: > Hello > > While there is a symbol in the object file, there is nothing like this >

Dear all, I am testing a simple C++ function that takes a double matrix as argument and which uses routines provided by the C++ Armadillo package. I am aware of the nice capabilities of Rcpp and RcppArmadillo which helps simplifying a lot and that I have already successfully tested. However, I had a hard time trying to figure out how the coercion from a REALSPX matrix to an arma::mat =

oh,I'm sorry to make such a stupid mistake...But I still have to tell the correct one still didnt make difference...so weird 2014-04-04 16:30 GMT+08:00 Anton Korobeynikov <anton at korobeynikov.info>: > Are you sure, that LLVMGetNamedFunction(m,"_a_outside_func") does not > return NULL? I believe it should be > LLVMGetNamedFunction(m,"a_outside_func") >

Hello, [Using LLVM r155315, according to `svn log | head`] I am experimenting with programatically building and jitting functions in a module, and I seem to be coming across a crash in some generated code. Using the llvm-c interface I build up the module which dumps like this: ; ModuleID = 'MyModule' target datalayout = "i686-apple-darwin11" target triple =

One possibility might be to use Rcpp. An R matrix is stored in contiguous memory, which can be considered as a vector. Define a C++ function which operates on a vector in place, as in the following: library(Rcpp) cppFunction( 'void subtractConst(NumericVector x, double c) { for ( int i = 0; i < x.size(); ++i) x[i] = x[i] - c; }') Try this function out on a matrix. Here we

Dear R-devel, I am trying to do something similar to dynamic length lists in R, but at C level. In R, that would be rather trivial: - determine the length of the list - create the list object - store the values for each component - access value components by using "[[" At C level, for a single component where I need to store a vector of length 5, I do: int *p_result; SEXP my_list =

What is the RcppArmadillo way to make binomial draws from a vector of probs, similar to what rbinom does in R? Thanx! -- View this message in context: http://r.789695.n4.nabble.com/rbinom-in-RcppArmadillo-tp4683593.html Sent from the R devel mailing list archive at Nabble.com.

Hi all, I am writing a R extensions, and I need pass time_t to R in C, but I don't know how to do. Can you give me some help? do not use double directly. Thanks, Bill -- *Travel | Programming* *http://freecnpro.net* <http://freecnpro.net> [[alternative HTML version deleted]]

On 12 November 2016 at 07:59, Dirk Eddelbuettel wrote: | | On 12 November 2016 at 14:23, Kirill M?ller wrote: | | Thanks. I have now CXX = g++ -std=c++98 in my /etc/R/Makeconf, it's | | picked up properly. I can only assume that the last -std= option wins if | | more than one are given on the same command line [1]. | | Good to know it works. | | I am still a little puzzled why it was

I doubt that R's basic matrix capabilities can handle this, but have a look at the Matrix package, especially if your matrix is some special form. Bert On Tue, Apr 11, 2023, 19:21 Shunran Zhang <szhang at ngs.gen-info.osaka-u.ac.jp> wrote: > Hi all, > > I am currently working with a quite large matrix that takes 300G of > memory. My computer only has 512G of memory. I

Hi. Here is a piece of cpp code. It works, but I do not understand the rational for the use of "R::dpois" to call the function dpois since in the examples I have always found directly "dpois" or "Rcpp::dpois" that both do not work in my code. Could anyone be so patient to explain me why should it be like that? Thaks a lot, Enrico #include <Rcpp.h> using

I am unable to convert a vm using virt-v2v. From the trace and debug logs I am unable to understand the cause of the problem. I assume it is a permission or configuration issue but I don't know where to start looking. The following command was issued: LIBGUESTFS_TRACE=1 LIBGUESTFS_DEBUG=1 virt-v2v -ic qemu+ssh://xxx at 192.168.xxx.xxx/system -o rhev -os 192.168.xxx.xxx:/mnt/exports -of