The BOOST_PP_LPAREN macro expands to a left parenthesis.

Usage

BOOST_PP_LPAREN()

Remarks

The preprocessor interprets parentheses as delimiters in macro invocations.  Because of this, parentheses require special handling.

See Also

Requirements

Header:  <boost/preprocessor/punctuation/paren.hpp>

Sample Code

#include <boost/preprocessor/punctuation/paren.hpp>

#define X(x) x
#define MACRO(p, x) X p x )

MACRO(BOOST_PP_LPAREN(), abc) // expands to abc

#define Y(x)

MACRO((10) Y BOOST_PP_LPAREN(), result) // expands to 10
© 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)