boostorg/preprocessor
1
0
Fork 1
mirror of https://github.com/boostorg/preprocessor.git synced 2025-07-15 13:36:33 +02:00
Code Issues Packages Projects Releases Wiki Activity

Added BOOST_PP_FOLD_LEFT_2ND()

Browse Source 
[SVN r12894]
This commit is contained in:
Vesa Karvonen
2002-02-22 10:38:40 +00:00
parent 6229f991c8
commit 86be4492a3
1 changed files with 35 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
include/boost/preprocessor/list/fold_left_2nd.hpp Normal file
View File

@ -0,0 +1,35 @@
#ifndef BOOST_PREPROCESSOR_LIST_FOLD_LEFT_2ND_HPP
#define BOOST_PREPROCESSOR_LIST_FOLD_LEFT_2ND_HPP
/* Copyright (C) 2002
* Housemarque Oy
* http://www.housemarque.com
*
* Permission to copy, use, modify, sell and distribute this software is
* granted provided this copyright notice appears in all copies. This
* software is provided "as is" without express or implied warranty, and
* with no claim as to its suitability for any purpose.
*
* See http://www.boost.org for most recent version.
*/
#include <boost/preprocessor/list/adt.hpp>
#include <boost/preprocessor/while.hpp>
/** <p>Same as BOOST_PP_FOLD_LEFT(), but is implemented independently.</p> */
#define BOOST_PP_LIST_FOLD_LEFT_2ND(F,P,L) BOOST_PP_LIST_FOLD_LEFT_2ND_D(0,F,P,L)
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#define BOOST_PP_LIST_FOLD_LEFT_2ND_D(D,F,P,L) BOOST_PP_TUPLE_ELEM(3,1,BOOST_PP_WHILE##D(BOOST_PP_LIST_FOLD_LEFT_2ND_C,BOOST_PP_LIST_FOLD_LEFT_2ND_F,(F,P,L)))
#if !defined(BOOST_NO_COMPILER_CONFIG) && defined(__MWERKS__) && __MWERKS__ <= 0x2406
# define BOOST_PP_LIST_FOLD_LEFT_2ND_C(D,X) BOOST_PP_TUPLE_ELEM(3,2,BOOST_PP_TUPLE_ELEM(3,2,X))
# define BOOST_PP_LIST_FOLD_LEFT_2ND_F(D,X) (BOOST_PP_TUPLE_ELEM(3,0,X),BOOST_PP_TUPLE_ELEM(3,0,X)(D,BOOST_PP_TUPLE_ELEM(3,1,X),BOOST_PP_TUPLE_ELEM(3,0,BOOST_PP_TUPLE_ELEM(3,2,X))),BOOST_PP_TUPLE_ELEM(3,1,BOOST_PP_TUPLE_ELEM(3,2,X)))
#elif !defined(BOOST_NO_COMPILER_CONFIG) && defined(_MSC_VER)
# define BOOST_PP_LIST_FOLD_LEFT_2ND_C(D,X) BOOST_PP_TUPLE3_ELEM2 BOOST_PP_TUPLE3_ELEM2 X
# define BOOST_PP_LIST_FOLD_LEFT_2ND_F(D,X) (BOOST_PP_TUPLE_ELEM(3,0,X),BOOST_PP_TUPLE3_ELEM0 X(D,BOOST_PP_TUPLE3_ELEM1 X,BOOST_PP_TUPLE3_ELEM0 BOOST_PP_TUPLE3_ELEM2 X),BOOST_PP_TUPLE3_ELEM1 BOOST_PP_TUPLE3_ELEM2 X)
#else
# define BOOST_PP_LIST_FOLD_LEFT_2ND_C(D,X) BOOST_PP_TUPLE3_ELEM2 BOOST_PP_TUPLE3_ELEM2 X
# define BOOST_PP_LIST_FOLD_LEFT_2ND_F(D,X) (BOOST_PP_TUPLE3_ELEM0 X,BOOST_PP_TUPLE3_ELEM0 X(D,BOOST_PP_TUPLE3_ELEM1 X,BOOST_PP_TUPLE3_ELEM0 BOOST_PP_TUPLE3_ELEM2 X),BOOST_PP_TUPLE3_ELEM1 BOOST_PP_TUPLE3_ELEM2 X)
#endif
#endif
#endif