Thanks.
The same error if I use cppFunction thought the example in sourceCpp
use a string of c++ code passed using code:
> require(Rcpp)
>
> cppFunction(code='
+ #include <Rcpp.h>
+
+ // [[Rcpp::export]]
+ int fibonacci(const int x) {
+ if (x == 0) return(0);
+ if (x == 1) return(1);
+ return (fibonacci(x - 1)) + fibonacci(x - 2);
+ }'
+ )
Error in tools:::file_path_as_absolute(base:::system.file(..., package
= "Rcpp")) :
file '' does not exist
>
>
> ?cppFunction
> example(sourceCpp)
srcCpp> ## Not run:
srcCpp> ##D
srcCpp> ##D sourceCpp("fibonacci.cpp")
srcCpp> ##D
srcCpp> ##D sourceCpp(code='
srcCpp> ##D #include <Rcpp.h>
srcCpp> ##D
srcCpp> ##D // [[Rcpp::export]]
srcCpp> ##D int fibonacci(const int x) {
srcCpp> ##D if (x == 0) return(0);
srcCpp> ##D if (x == 1) return(1);
srcCpp> ##D return (fibonacci(x - 1)) + fibonacci(x - 2);
srcCpp> ##D }'
srcCpp> ##D )
srcCpp> ##D
srcCpp> ## End(Not run)
srcCpp>
srcCpp>
srcCpp>
--
Jiqiang
On Thu, Nov 15, 2012 at 1:34 PM, Dirk Eddelbuettel <[email protected]> wrote:
> On 15 November 2012 at 13:20, Jiqiang Guo wrote:
> | I tried the example of sourceCpp on Mac mountain lion with R 2.15.1
> | with the following error (I hit the similar error in using RStan as
> | well).
> |
> | > library(Rcpp)
> | > require(Rcpp)
> | >
> | > sourceCpp(code='
>
> Operator error: sourceCpp() takes a filename. cppFunction() takes a
> "program in a string" a la cxxfunction()
>
> Dirk
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