AOO410/main/comphelper/inc/comphelper/makesequence.hxx

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#if ! defined(COMPHELPER_MAKESEQUENCE_HXX_INCLUDED)
#define COMPHELPER_MAKESEQUENCE_HXX_INCLUDED

#include "com/sun/star/uno/Sequence.hxx"
#include "boost/preprocessor/cat.hpp"
#include "boost/preprocessor/repetition.hpp"
#include "boost/preprocessor/arithmetic/add.hpp"

namespace comphelper {

/** Creates a uno::Sequence out of one parameter.
*/
template <typename T>
inline ::com::sun::star::uno::Sequence<T> makeSequence( T const& element )
{
    return ::com::sun::star::uno::Sequence<T>( &element, 1 );
}

#define COMPHELPER_MAKESEQUENCE_assign(z_, n_, unused_) \
    p[n_] = BOOST_PP_CAT(element, n_);

/** The following preprocessor repetitions generate functions like
    
    <pre>
        template <typename T>
        inline ::com::sun::star::uno::Sequence<T> makeSequence(
            T const& element0, T const& element1, ... );
    </pre>
    
    which make a sequence out of the passed elements.
    
    The maximum number of elements can be set by defining
    COMPHELPER_MAKESEQUENCE_MAX_ARGS; its default is 12.
*/
#define COMPHELPER_MAKESEQUENCE_make(z_, n_, unused_) \
template <typename T> \
inline ::com::sun::star::uno::Sequence<T> makeSequence( \
    BOOST_PP_ENUM_PARAMS(n_, T const& element) ) \
{ \
    ::com::sun::star::uno::Sequence<T> seq( n_ ); \
    T * p = seq.getArray(); \
    BOOST_PP_REPEAT(n_, COMPHELPER_MAKESEQUENCE_assign, ~) \
    return seq; \
}

#if ! defined(COMPHELPER_MAKESEQUENCE_MAX_ARGS)
#define COMPHELPER_MAKESEQUENCE_MAX_ARGS 12
#endif

BOOST_PP_REPEAT_FROM_TO(2, BOOST_PP_ADD(COMPHELPER_MAKESEQUENCE_MAX_ARGS, 1),
                        COMPHELPER_MAKESEQUENCE_make, ~)

#undef COMPHELPER_MAKESEQUENCE_MAX_ARGS
#undef COMPHELPER_MAKESEQUENCE_make
#undef COMPHELPER_MAKESEQUENCE_assign

} // namespace comphelper

#endif //  ! defined(COMPHELPER_MAKESEQUENCE_HXX_INCLUDED)