The BOOST_PP_LIST_SIZE macro expands to the size of a list.

Usage

BOOST_PP_LIST_SIZE(list)

Arguments

list
A list whose size is to be calculated.

Remarks

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_SIZE_D in such a situation.

See Also

Requirements

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

Sample Code

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

#define LIST (0, (1, (2, (3, BOOST_PP_NIL))))

BOOST_PP_LIST_SIZE(LIST) // expands to 4
© 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)