AOO410/main/comphelper/inc/comphelper/optional.hxx

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#if ! defined(INCLUDED_COMPHELPER_OPTIONAL_HXX)
#define INCLUDED_COMPHELPER_OPTIONAL_HXX

#if ! defined(_COM_SUN_STAR_BEANS_OPTIONAL_HPP_)
#include "com/sun/star/beans/Optional.hpp"
#endif
#include "boost/optional.hpp"

namespace comphelper {

/// Object generators for boost::optional<T>, beans::Optional<T>:

template <typename T>
inline ::boost::optional<T> make_optional( T const& v )
{
    return ::boost::optional<T>(v);
}

template <typename T>
inline ::boost::optional<T> make_optional(
    ::com::sun::star::beans::Optional<T> const& o )
{
    if (o.IsPresent)
        return ::boost::optional<T>(o.Value);
    else
        return ::boost::optional<T>();
}

template <typename T>
inline ::com::sun::star::beans::Optional<T> makeOptional( T const& v )
{
//     CPPU_IS_CPP_MAPPING_OF_NON_VOID_UNO_TYPE(T);
    return ::com::sun::star::beans::Optional<T>(true, v);
}

template <typename T>
inline ::com::sun::star::beans::Optional<T> makeOptional(
    ::boost::optional<T> const& o )
{
//     CPPU_IS_CPP_MAPPING_OF_NON_VOID_UNO_TYPE(T);
    if (o)
        return ::com::sun::star::beans::Optional<T>(true, *o);
    else
        return ::com::sun::star::beans::Optional<T>();
}

inline ::com::sun::star::beans::Optional<sal_Bool> makeOptional(
    ::boost::optional<bool> const& o )
{
    if (o)
        return ::com::sun::star::beans::Optional<sal_Bool>(true, *o);
    else
        return ::com::sun::star::beans::Optional<sal_Bool>();
}

inline ::com::sun::star::beans::Optional<sal_Bool> makeOptional( bool v )
{
    return ::com::sun::star::beans::Optional<sal_Bool>(true, v);
}

} // namespace comphelper

#endif // ! defined(INCLUDED_COMPHELPER_OPTIONAL_HXX)