similar to: isSeekable returns F on seekable file

While using the file functions have found a few more issues (on both Unix and Windows) ie R documentation: In the "close" description (base package) we see that the possible values for the mode 'open' the "r+" and "r+b" values are repeated, and are incorrect the second time. The second set actually corresponds to the "w+" / "w+b", see

Hi I have this program in which fooBuf can only take on NULL or the address of local_fooBuf, and fooBuf and local_fooBuf have scope of the foo function. Therefore there is no way for the fooPtr argument to alias with fooBuf. However, LLVM basicaa and globalsmodref-aa say the 2 pointers may alias. I am thinking whether i should implement a limited form of point-to alias on the fooBuf pointer in

I'm seeing these recently: Feb 27 09:24:01 nihlus dovecot: imap(tlx at leuxner.net): Error: istream-seekable: safe_mkstemp(/tmp/dovecot.imap.) failed: No such file or directory Feb 27 09:24:01 nihlus dovecot: imap(tlx at leuxner.net): Error: istream-seekable: safe_mkstemp(/tmp/dovecot.imap.) failed: No such file or directory Feb 27 09:24:01 nihlus dovecot: imap(tlx at leuxner.net): Error:

Hi, I use the following code: if (ov_open(NULL, &vf, const_cast<char*>(reinterpret_cast<const char*>(get_data())), get_size()) < 0) error = 0x100; else { vorbis_info* vi = ov_info(&vf, -1); Cvirtual_file f; const int cb_samples = ov_pcm_total(&vf, -1); const bool seekable = ov_seekable(&vf); So all data is already in memory and passed to

I've been trying to get oggdec to work with input streamed in through a pipe or a socket. This seems to work on Linux and OS X, but not on Windows. I've found that code in vorbisfile.c tests the input stream for seekability by invoking fseek in the following way: int offsettest=(f?callbacks.seek_func(f,0,SEEK_CUR) : -1); Unfortunately, fseek succeeds for a socket on Windows (even

Hi Timo, just another crash - using 2.2.1 (c95cea6e1389). Regards, Pascal -------------- next part -------------- Reading symbols from /usr/local/libexec/dovecot/imap...done. [New LWP 15198] warning: Can't read pathname for load map: Input/output error. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core

Hi the list, I try to use callNextMethod in a setteur ([<-) but it does not work. Any raison ? Any other option ? --- 8< ------------------ ### Class B0 ### setClass("B0" , representation(b0 = "numeric")) setReplaceMethod("[","B0",function(x,i,j,value){x at b0 <- -value}) a <- new("B0") a at b0 <- 3 a a["b0"] <- 3 a

Hi I have the code like I show below. The problem here is that I have a setReplacementMethod to set the value of my class slot. However, this function doesn't work when I call it within another function definition (declared by setMethod) of the same class. I do not understand this behavior that much. I'm wondering how to make this work? Any help would be really appreciated. Thank you.

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

Hi If x <- 1:10 then x[5] <- 1i will promote x to be a complex vector. Suppose I have an S4 class "brob", and have functions is.brob(), as.brob(), as.numeric() and so forth (minimal self-contained code below). If x is numeric (1:10, say) and y is a brob, what is the best way to make x[5] <- y promote x to a brob in the same way as the complex example? Or is

Hi, perhaps a little bit unusual: is it possible to use "<- " as generic function with a new signature? The following example doesn't work: > isGeneric("<-") [1] FALSE > setClass("A",representation(x = "numeric")) [1] "A" > setClass("B",representation(x = "numeric")) [1] "B" > myAssign.A <-

Hi, I started creating a small class but I'm courious about how it is working. To create a instance of my class "Partri" I write this at Rgui: x <- new("Partri", name="Gilvan") and to change the slot "name" of this instance, I write: setName(x, newname="Justino") It is not working, because when I type "x" at Rgui, it shows

Dear all, what is the proper way to make the assignment operator generic and define methods depending on the class of the assigned value? Best regards Jens Oehlschl?gel P.S. I vaguely remember that this was possible in S+. In R I tried to no avail: # using this like h<-1:3 gives Error: in `<-.default`(h, 1:3) : invalid (do_set) left-hand side to assignment

List, In order to get rid of some old, unreadable S3 code in package sp, I'm trying to rewrite things using S4 methods. Somewhere I fail, and I cannot sort out why. In order to isolate the problem, I created two functions, doNothing<- and dosth, and both should do nothing. The issue is that in most cases they do nothing, but in some cases dosth(obj) changes the class of obj and breaks with

I feel tedious when I define a S4 class and the methods. For each method, I have to call both setMethod and setGeneric (or both setReplaceMethod and setGeneric). I would like a more compact grammar so that I can reduce the key strokes. I'm wondering if there is a better way available. setClass( Class='A', representation=representation( x='numeric' )

I defined an S4 class with a slot i. Then I wrote a regular function that attempted to increment i. This didn't work, apparently because of the general rule that a function can't change the values of its arguments outside the function. I gather there are ways around it, but the Green book admonishes "cheating on the S evaluation model is to be avoided" (p. 190). Thinking that

Hello I am writing a replacement method for an S4 class and want to pass an additional argument to "[<-"() along the lines of "["()'s "drop" argument. Specifically, I have an S4 class, call it "foo", with a slot 'x' that is a vector and a slot 'NC' that is a scalar. I want to be able to pass a Boolean argument to the

Dear all, Assume that I have an S4 class "MyClass" with a slot "myname", which is initialized to: myname="" in method("initialize"): myclass <- new("MyClass", myname="") Assume that class "MyClass" has a method "mymethod": "mymethod.MyClass" <- function(object, myname=character(0), ...) {

Hi there, Problem :: When one tries to change one or some of the columns of a data.frame, R makes a copy of the whole data.frame using the '*tmp*' mechanism (this does not happen for components of a list, tracemem( ) on R-2.6.2 says so). Suggested solution :: Store the columns of the data.frame as a list inside of an environment slot of an S4 class, and define the '[',