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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_COMPHELPER_MAKESEQUENCE_HXX
      21             : #define INCLUDED_COMPHELPER_MAKESEQUENCE_HXX
      22             : 
      23             : #include <com/sun/star/uno/Sequence.hxx>
      24             : #include <boost/preprocessor/cat.hpp>
      25             : #include <boost/preprocessor/repetition.hpp>
      26             : #include <boost/preprocessor/arithmetic/add.hpp>
      27             : 
      28             : namespace comphelper {
      29             : 
      30             : /** Creates a uno::Sequence out of one parameter.
      31             : */
      32             : template <typename T>
      33           4 : inline ::com::sun::star::uno::Sequence<T> makeSequence( T const& element )
      34             : {
      35           4 :     return ::com::sun::star::uno::Sequence<T>( &element, 1 );
      36             : }
      37             : 
      38             : #define COMPHELPER_MAKESEQUENCE_assign(z_, n_, unused_) \
      39             :     p[n_] = BOOST_PP_CAT(element, n_);
      40             : 
      41             : /** The following preprocessor repetitions generate functions like
      42             : 
      43             :     <pre>
      44             :         template <typename T>
      45             :         inline ::com::sun::star::uno::Sequence<T> makeSequence(
      46             :             T const& element0, T const& element1, ... );
      47             :     </pre>
      48             : 
      49             :     which make a sequence out of the passed elements.
      50             : 
      51             :     The maximum number of elements can be set by defining
      52             :     COMPHELPER_MAKESEQUENCE_MAX_ARGS; its default is 12.
      53             : */
      54             : #define COMPHELPER_MAKESEQUENCE_make(z_, n_, unused_) \
      55             : template <typename T> \
      56             : inline ::com::sun::star::uno::Sequence<T> makeSequence( \
      57             :     BOOST_PP_ENUM_PARAMS(n_, T const& element) ) \
      58             : { \
      59             :     ::com::sun::star::uno::Sequence<T> seq( n_ ); \
      60             :     T * p = seq.getArray(); \
      61             :     BOOST_PP_REPEAT(n_, COMPHELPER_MAKESEQUENCE_assign, ~) \
      62             :     return seq; \
      63             : }
      64             : 
      65             : #ifndef COMPHELPER_MAKESEQUENCE_MAX_ARGS
      66             : #define COMPHELPER_MAKESEQUENCE_MAX_ARGS 12
      67             : #endif
      68             : 
      69         128 : BOOST_PP_REPEAT_FROM_TO(2, BOOST_PP_ADD(COMPHELPER_MAKESEQUENCE_MAX_ARGS, 1),
      70             :                         COMPHELPER_MAKESEQUENCE_make, ~)
      71             : 
      72             : #undef COMPHELPER_MAKESEQUENCE_MAX_ARGS
      73             : #undef COMPHELPER_MAKESEQUENCE_make
      74             : #undef COMPHELPER_MAKESEQUENCE_assign
      75             : 
      76             : } // namespace comphelper
      77             : 
      78             : #endif //  ! defined( INCLUDED_COMPHELPER_MAKESEQUENCE_HXX)
      79             : 
      80             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */