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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
/* :tabSize=4:indentSize=4:noTabs=false:folding=explicit:collapseFolds=1: */
//
// has_na.h: Rcpp R/C++ interface class library -- NA handling
//
// Copyright (C) 2010 - 2011 Dirk Eddelbuettel and Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp 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.
//
// Rcpp 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 Rcpp. If not, see <http://www.gnu.org/licenses/>.
#ifndef Rcpp__traits__has_na__h
#define Rcpp__traits__has_na__h
namespace Rcpp{
namespace traits{
/**
* Indentifies if a given SEXP type has the concept of missing values
*
* This is false by default and specialized for all types that do
* have the concept
*/
template<int RTYPE> struct has_na : public false_type{} ;
/**
* integer vectors support missing values
*/
template<> struct has_na<INTSXP> : public true_type{};
/**
* numeric vectors support missing values
*/
template<> struct has_na<REALSXP> : public true_type{};
/**
* complex vectors support missing values
*/
template<> struct has_na<CPLXSXP> : public true_type{};
/**
* character vector support missing values
*/
template<> struct has_na<STRSXP> : public true_type{};
/**
* logical vectors support missing values
*/
template<> struct has_na<LGLSXP> : public true_type{};
}
}
#endif
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