24 lines
550 B
C++
24 lines
550 B
C++
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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
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// This is a rewrite of the 'Writing R Extensions' section 5.10.1 example
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#include <Rcpp.h>
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using namespace Rcpp ;
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RcppExport SEXP convolve5cpp(SEXP a, SEXP b) {
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NumericVector xa(a); int n_xa = xa.size() ;
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NumericVector xb(b); int n_xb = xb.size() ;
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NumericVector xab(n_xa + n_xb - 1,0.0);
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Range r( 0, n_xb-1 );
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for(int i=0; i<n_xa; i++, r++){
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xab[ r ] += xa[i] * xb ;
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}
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return xab ;
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}
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#include "loopmacro.h"
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LOOPMACRO_CPP(convolve5cpp)
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