BOOST_PP_EQUAL

The BOOST_PP_EQUAL macro compares two values for equality.

Usage

BOOST_PP_EQUAL (x, y)

Arguments

x The left operand of the comparison. Valid values range from 0 to BOOST_PP_LIMIT_MAG. y The right operand of the comparison. Valid values range from 0 to BOOST_PP_LIMIT_MAG.

Remarks

If x is equal to y, this macro expands to 1. Otherwise, it expands to 0.

Previously, this macro could not be used inside BOOST_PP_WHILE. There is no longer any such restriction because this macro no longer uses BOOST_PP_WHILE.

See Also

• BOOST_PP_EQUAL_D
• BOOST_PP_LIMIT_MAG

Requirements

Header: <boost/preprocessor/comparison/equal.hpp>

Sample Code

#include <[boost/preprocessor/comparison/equal.hpp](../headers/comparison/equal.html)>[BOOST\_PP\_EQUAL](equal.html)(4, 3) // expands to 0[BOOST\_PP\_EQUAL](equal.html)(5, 5) // expands to 1

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)