BOOST_PP_INTERCEPT

The BOOST_PP_INTERCEPT macro intercepts a numeric concatenation and expands to nothing.

Usage

BOOST_PP_INTERCEPT

Remarks

This macro is used to intercept concatenations performed by various other library constructs. It is typically used after other text to prevent eat the concatenation expand to nothing. This macro can only intercept integer constants in the range of 0 to BOOST_PP_LIMIT_MAG.

See Also

• BOOST_PP_LIMIT_MAG

Requirements

Header: <boost/preprocessor/facilities/intercept.hpp>

Sample Code

#include <[boost/preprocessor/facilities/intercept.hpp](../headers/facilities/intercept.html)>
#include <[boost/preprocessor/repetition/enum\_binary\_params.hpp](../headers/repetition/enum_binary_params.html)>[BOOST\_PP\_ENUM\_BINARY\_PARAMS](enum_binary_params.html)(3, class T, = U)
// expands to class T0 = U0, class T1 = U1, class T2 = U2[BOOST\_PP\_ENUM\_BINARY\_PARAMS](enum_binary_params.html)(3, class T, = int[BOOST\_PP\_INTERCEPT](intercept.html))
// expands to class T0 = int, class T1 = int, class T2 = int

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)