g++ errors when trying to compile c++11 with Rcpp

Question

SYSTEM SPEC:

• OS - Mac OS X 10.6.8 (Snow Leopard)
• g++ - Macports gcc 4.8.1_2+universal

Answer 1

Quick ones:

• you are behind on Rcpp which is at a released version 0.10.4

• the version you are using (0.10.3) does have have a plugin for C++11

• there is an entire article at the Rcpp Gallery which details this.

So allow me to quote from that C++11 piece on the Rcpp Gallery:

R> library(Rcpp)
R> sourceCpp("/tmp/cpp11.cpp")
R> useAuto()
[1] 42
R> 

where the code in /tmp/cpp11.cpp is as follows:

#include 

// Enable C++11 via this plugin (Rcpp 0.10.3 or later)
// [[Rcpp::plugins("cpp11")]]

// [[Rcpp::export]]
int useAuto() {
    auto val = 42;      // val will be of type int
    return val;
}

If that does not work for you, then your system is not set up right. In other words, this is not a question for the Rcpp tag -- but rather for 'how do I set up my path to invoke the version of g++ I think I should be invoking'.