search for: classtypes

I have some security alert log data that I'm parsing and doing some stats on. One of the fields is the "Classtype" which is the enumerated value of the type of alert found. classtypes = factor( alerts$Classtype ) fclass_types = table( classtypes ) fclass_types gives me a frequency table of the intrusion types: fclass_types classtypes attempted-admin attempted-recon 18 93...

Given the C++ struct: struct S { string a; string b; }; I also have C "thunk" functions that I call from LLVM code: // calls S::S() void* T_S_M_new( void *heap ); // call string::assign(char const*) void T_string_M_assign_Pv( void *that, void *value ); I want to do the LLVM equivalent of the following C++ (where that 's' is pointer to an instance of 'S'):

On Oct 1, 2012, at 9:58 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > Using GEP on an i8* is a bit nicer to the optimizer, though, because > using ptrtoint/inttoptr has effects on alias analysis. My understanding is that, in order to use GEP, you have to provide the LLVM code with the struct layout, i.e., build a StructType object. In my case, that struct is declared in C++

On Mon, Oct 1, 2012 at 9:33 PM, Paul J. Lucas <paul at lucasmail.org> wrote: > Given the C++ struct: > > struct S { > string a; > string b; > }; > > I also have C "thunk" functions that I call from LLVM code: > > // calls S::S() > void* T_S_M_new( void *heap ); > > // call

On Tue, Oct 2, 2012 at 11:33 AM, Paul J. Lucas <paul at lucasmail.org> wrote: > On Oct 1, 2012, at 9:58 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > >> Using GEP on an i8* is a bit nicer to the optimizer, though, because >> using ptrtoint/inttoptr has effects on alias analysis. > > My understanding is that, in order to use GEP, you have to provide the

On Oct 2, 2012, at 2:34 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > On Tue, Oct 2, 2012 at 11:33 AM, Paul J. Lucas <paul at lucasmail.org> wrote: > >> My understanding is that, in order to use GEP, you have to provide the LLVM code with the struct layout, i.e., build a StructType object. In my case, that struct is declared in C++ code already and, in order to

Hi I found a weird problem in testthat while working with an ALTREP package. The package name is AltWrapper. My ALTREP serialize function is called even when I'm trying to serialize a non-ALTREP object. Here is an example ``` context("altrep") length_func<-function(x){ return(length(x)) } setAltClass(className = "test", classType = "real")

Hi Kylie, For your question, I don't think a wrapper can completely solve your problem. The duplication occurs since your variable y has more than 1 reference number( Please see highlighted), so even you have a wrapper, any changes on the value of the wrapper still can trigger the duplication. > .Internal(inspect(y)) > @7fb0ce78c0f0 13 INTSXP g0c0 *[NAM(7)]* matter vector (mode=3,

Hi all, I was wondering if we could use named metadata to store some of C++ logic without changing the IR. This is primarily only for front-end buiding and the resulting IR (with or without metadata) should be the same as it is today (or better). I say this because of the number of global variables front-ends need to keep because LLVM IR cannot represent all the information of types, vatriables,

Hello, I?m experimenting with ALTREP and was wondering if there is a preferred way to create an ALTREP wrapper vector without using .Internal(wrap_meta(?)), which R CMD check doesn?t like since it uses an .Internal() function. I was trying to create a factor that used an ALTREP integer, but attempting to set the class and levels attributes always ended up duplicating and materializing the