similar to: compile error for mkString on alpha (PR#332)

On Tue, May 24, 2016 at 9:30 AM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote: > On Tue, May 24, 2016 at 5:59 PM, Gabriel Becker <gmbecker at ucdavis.edu> > wrote: > > Shouldn't Rf_mkString(NULL) return (the c-level equivalent of) > character() > > rather than the NA_character_? > > No. It should still be safe to assume that mkString() always returns

On Wed, May 25, 2016 at 12:31 PM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: > Better than segfaulting, yes, but really agree with Bill (and > Gabe), also for Rf_mkChar(NULL): > I think both functions should give an error in such a case > rather than returning NA_character_ > > It is an accident of some kind if they got NULL, no? Not necessarily. A char* of

Shouldn't Rf_mkString(NULL) return (the c-level equivalent of) character() rather than the NA_character_? An empty string and NULL aren't the same. It seems reasonable for Rf_mkChar to give NA_character_ though. ~G On Tue, May 24, 2016 at 8:42 AM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote: > On Thu, May 12, 2016 at 1:20 PM, Jeroen Ooms <jeroen.ooms at

I would like to propose that Rf_mkString(NULL) and Rf_mkChar(NULL) return NA rather than segfault. Case: the mkString() and mkChar() functions are convenient to wrap strings returned by e.g. external C libraries into an R vector. However sometimes a library returns NULL instead of a string when the result is unavailable. In some C libraries this can happen unexpectedly or is even undocumented. A

Full_Name: Tim Keitt Version: 1.2x OS: Linux Submission from: (NULL) (129.49.19.70) The function "mkString" declared in "Rinternals.h" dumps core if passed a NULL pointer. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

>>>>> Gabriel Becker <gmbecker at ucdavis.edu> >>>>> on Tue, 24 May 2016 10:30:48 -0700 writes: > On Tue, May 24, 2016 at 9:30 AM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> > wrote: >> On Tue, May 24, 2016 at 5:59 PM, Gabriel Becker <gmbecker at ucdavis.edu> >> wrote: >> > Shouldn't

http://bugzilla.mindrot.org/show_bug.cgi?id=371 Summary: OpenSSH fails to build on Alpha True64 in cipher.c Product: Portable OpenSSH Version: -current Platform: Alpha OS/Version: OSF/1 Status: NEW Severity: normal Priority: P2 Component: Build system AssignedTo: openssh-unix-dev at mindrot.org

On Wed, May 25, 2016 at 4:23 AM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote: > On Wed, May 25, 2016 at 12:31 PM, Martin Maechler > <maechler at stat.math.ethz.ch> wrote: > > Better than segfaulting, yes, but really agree with Bill (and > > Gabe), also for Rf_mkChar(NULL): > > I think both functions should give an error in such a case > > rather than

I'm trying to get a reference to this object in C SWX.RET[1:6,c("SBI,"SPI","SII")] While i am able to access and use a plain SWX.RET object, I'm getting confused on how to create an object with the array subscripts like above. Here is what I tried to do. It doesn't work because "[" is obviously not an operation or function on SWX.RET. So how do I

I am compiling R-0.90.0 on alpha-dec-osf4.0 and it stops by giving the following message: cc: Error: ../../../R/src/main/gram.y, line 1365: In this declaration, parameter 1 has a different type than specified in an earlier declaration of this function. SEXP mkString(const char *s) -----^ cc: Error: ../../../R/src/main/gram.y, line 1365: In this declaration, the type of "mkString" is not

I am compiling R-0.90.0 on alpha-dec-osf4.0 and it stops by giving the following message: cc: Error: ../../../R/src/main/gram.y, line 1365: In this declaration, parameter 1 has a different type than specified in an earlier declaration of this function. SEXP mkString(const char *s) -----^ cc: Error: ../../../R/src/main/gram.y, line 1365: In this declaration, the type of "mkString" is not

Hi I'm trying to implement something similar to the following R snippet using C. I seem to have hit the wall on accessing class slots using C. library(fPortfolio) lppData <- 100 * LPP2005.RET[, 1:6] ewSpec <- portfolioSpec() nAssets <- ncol(lppData) setWeights(ewSpec) <- rep(1/nAssets, times = nAssets) ewPortfolio <- feasiblePortfolio( data = lppData, spec = ewSpec,

Recently I reviewed my RPM spec files for DU 4.0, and noticed that I forgot to post some problems + patches: 1. ./configure fails to choose a PIC flag, I simply removed the AC_MSG_ERROR and it works. There is actually no PIC flag for DEC cc (with DU 4.0E) --- ./configure.in.alpha-patch Mon Aug 23 06:36:28 1999 +++ ./configure.in Sun Sep 12 17:38:27 1999 @@ -541,7 +541,9 @@

Hello all, I am writing an R interface to some C++ files which make use of std::wstring classes for internationalization. Previously (when I wanted to make R strings from C++ std::strings), I would do something like this to construct a string in R from the results of the parse. SET_VECTOR_ELT(vals, i++, mkString(header.GetHeader().c_str())); However, now the call header.GetHeader().c_str()

On Thu, Sep 24, 2009 at 5:38 PM, Gordon Henriksen <gordonhenriksen at me.com> wrote: > On 2009-09-24, at 18:56, OvermindDL1 wrote: > > Out of curiosity, what code in Clang is optimized by doing a > pointer derefence then compare to 0, rather then just comparing two > points directly? Does not seem that efficient when laid out like that, > which is why I am curious what

Is it expected that attributes set on a LGLSXP created by ScalarLogical will apply to all future objects created by ScalarLogical as well? For example: the 'test1' function below returns FALSE and 'test2' returns FALSE with an attribute: library(inline) test1 <- cfunction(body = 'return ScalarLogical(0);') test2 <- cfunction(body = ' SEXP success =

Hi, I changed INTEGER(getAttrib(shape,mkChar("nParts")))[0] to INTEGER(getAttrib(shape,mkString("nParts")))[0] and now it works fine. Nicholas -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

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 -I./R-2.9.0/src/include -L./myR/lib64/R/lib -lR hello_r.c -o hello_r > /dev/null % hello_r zsh:

I was writing something using MemoryBuffer, and while looking through its code I came across line 59: assert(BufEnd[0] == 0 && "Buffer is not null terminated!"); I am curious if the MemoryBuffer only supports non-binary, non-null embedded files, or if it supports binary as well. I do not see anything inherently not expecting binary files except for that one line, so I am

Hi all, I am working with some large data sets (1-4 GB) and have some questions that I hope someone can help me with: 1. Is there a way to turn off garbage collector from within C interface ? what I am trying to do is suck data from mysql (using my own C functions) and I see that allocating each column (with about 1-4 million items) takes between 0.5 and 1 seconds. My