Hello all,
I don't know if it is possible, but I would like to use do.call in C code in
my package. The function do.call is defined as
> do.call
function (what, args, quote = FALSE, envir = parent.frame())
{
if (!is.list(args))
stop("second argument must be a list")
if (quote) {
enquote <- function(x) as.call(list(as.name("quote"),
x))
args <- lapply(args, enquote)
}
.Internal(do.call(what, args, envir))
}
<environment: namespace:base>
>
In <src>/main/names.c, the function do.call is linked to the C function
do_docall (line 499). (.Internal calls the good function line 1194.)
And the do_docall function is defined in <src>/main/coerce.c line 2217 and
declared as
SEXP attribute_hidden do_docall(SEXP call, SEXP op, SEXP args, SEXP rho)
in Internal.h.
The problem is that I do not guess the exact meaning of theses arguments,
and the header file Internal.h is not found when included in my C file.
As this header is not listed in R-exts.pdf section 6.17, I think I cannot
use the do_docall function.
Does anyone face this problem? or have an idea on how to solve it?
Thanks in advance
Christophe
--
Christophe DUTANG
Ph. D. student at ISFA, Lyon, France
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