Rcpp Version 0.12.12
convolve3_cpp.cpp
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 
3 // This is a rewrite of the 'Writing R Extensions' section 5.10.1 example
4 
5 #include <Rcpp.h>
6 
7 RcppExport SEXP convolve3cpp(SEXP a, SEXP b){
10  int n_xa = xa.size() ;
11  int n_xb = xb.size() ;
12  int nab = n_xa + n_xb - 1;
13  Rcpp::NumericVector xab(nab);
14 
15  for (int i = 0; i < n_xa; i++)
16  for (int j = 0; j < n_xb; j++)
17  xab[i + j] += xa[i] * xb[j];
18 
19  return xab ;
20 }
21 
22 #include "loopmacro.h"
24 
#define LOOPMACRO_CPP(name)
Definition: loopmacro.h:12
#define RcppExport
Definition: RcppCommon.h:129
R_xlen_t size() const
Definition: Vector.h:274
RcppExport SEXP convolve3cpp(SEXP a, SEXP b)