RscVariantHelpers.hpp

 
//
//  Copyright PHOENIX CONTACT Electronics GmbH
//
 
#pragma once
 
// TODO Move to Apr::System::Rsc::Services ?
 
#include "Arp/System/Rsc/Services/RscVariant.hxx"
 
namespace Arp { namespace System { namespace Nm { namespace Internal
{
 
template<typename T, int N>
struct rscvariant_cast
{
    T operator()(const Rsc::Services::RscVariant<N>& value)
    {
        T result{};
        value.CopyTo(result);
        return result;
    }
};
 
 
template<int N>
struct rscvariant_cast<Rsc::Services::RscVariant<N>, N>
{
    Rsc::Services::RscVariant<N> operator()(const Rsc::Services::RscVariant<N>& value)
    {
        return value;
    }
};
 
 
template<int N>
struct rscvariant_cast<String, N>
{
    String operator()(const Rsc::Services::RscVariant<N>& value)
    {
        return value.GetChars();
    }
};
 
 
} // namespace Internal
 
 
template<typename T, int N>
T rscvariant_cast(const Rsc::Services::RscVariant<N>& value)
{
    return Internal::rscvariant_cast<T, N>()(value);
}
 
 
}}} // end of namespace Arp::System::Nm