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Named.h
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47 lines (37 loc) · 975 Bytes
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#ifndef Rcpp_Named_h
#define Rcpp_Named_h
namespace Rcpp{
class Argument {
public:
Argument() : name(){}
Argument( std::string name_) : name(std::move(name_)){}
template<typename T>
inline traits::named_object<T> operator=( const T& t){
return traits::named_object<T>( name, t ) ;
}
std::string name ;
} ;
inline Argument Named( const std::string& name){
return Argument( name );
}
template <typename T>
inline traits::named_object<T> Named( const std::string& name, const T& o){
return traits::named_object<T>( name, o );
}
namespace internal{
class NamedPlaceHolder {
public:
NamedPlaceHolder(){}
~NamedPlaceHolder(){}
Argument operator[]( const std::string& arg) const {
return Argument( arg ) ;
}
Argument operator()(const std::string& arg) const {
return Argument( arg ) ;
}
operator SEXP() const { return R_MissingArg ; }
} ;
} // internal
static internal::NamedPlaceHolder _ ;
} // namespace Rcpp
#endif