The BOOST_PP_LIST_APPEND macro appends two lists.

Usage

BOOST_PP_LIST_APPEND(a, b)

Arguments

a
The first list.
b
The second list.

Remarks

This macro appends two lists.  For example, if a is (1, (2, (3, BOOST_PP_NIL))) and b is (4, (5, BOOST_PP_NIL)), this macro will expand to:
(1, (2, (3, (4, (5, BOOST_PP_NIL)))))
Previously, this macro could not be used inside BOOST_PP_WHILE.  There is no longer any such restriction.  It is more efficient, however, to use BOOST_PP_LIST_APPEND_D in such a situation.

See Also

Requirements

Header:  <boost/preprocessor/list/append.hpp>

Sample Code

#include <boost/preprocessor/list/append.hpp>

#define L1 (a, (b, (c, BOOST_PP_NIL)))
#define L2 (x, (y, (z, BOOST_PP_NIL)))

BOOST_PP_LIST_APPEND(L1, L2)
   // expands to (a, (b, (c, (x, (y, (z, BOOST_PP_NIL))))))
© Copyright Housemarque Oy 2002
© Copyright Paul Mensonides 2002

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at www.boost.org/LICENSE_1_0.txt)