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StringVectorExample.cpp
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40 lines (34 loc) · 1.32 KB
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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
//
// RcppStringVectorExample.cpp:
//
// Copyright (C) 2009 - 2016 Dirk Eddelbuettel and Romain Francois
//
// This file is part of RcppExamples.
//
// RcppExamples is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// RcppExamples is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with RcppExamples. If not, see <http://www.gnu.org/licenses/>.
#include <Rcpp.h>
using namespace Rcpp;
template <class T> T mytolower (T c) {
static std::locale loc;
return std::tolower(c, loc);
}
// [[Rcpp::export]]
List StringVectorExample(const StringVector & orig) {
StringVector vec(orig.size());
std::transform(orig.begin(), orig.end(), vec.begin(),
make_string_transformer(mytolower<char>) );
return List::create(Named("result") = vec,
Named("original") = orig);
}