The BOOST_PP_TUPLE_POP_BACK macro pops an element from the end of an tuple.

Usage

BOOST_PP_TUPLE_POP_BACK(tuple) (v)

Arguments

tuple
The tuple to pop an element from.

Remarks

This macro returns tuple after removing the last element.  If tuple has only a single element, it remains unchanged since a tuple must have at least one element.
This macro uses BOOST_PP_REPEAT internally.  Therefore, to use the z parameter passed from other macros that use BOOST_PP_REPEAT, see BOOST_PP_TUPLE_POP_BACK_Z

See Also

Requirements

Header:  <boost/preprocessor/tuple/pop_back.hpp>

Sample Code

#include <boost/preprocessor/tuple/pop_back.hpp>

#define TUPLE (a, b, c)

BOOST_PP_TUPLE_POP_BACK(TUPLE) // expands to (a, b)
© Copyright Edward Diener 2013

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)