0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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// (C) Copyright Edward Diener 2011-2015
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt).
#if !defined(BOOST_VMD_IS_NUMBER_HPP)
#define BOOST_VMD_IS_NUMBER_HPP
#include <boost/vmd/detail/setup.hpp>
#if BOOST_PP_VARIADICS
#include <boost/vmd/detail/is_number.hpp>
/*
The succeeding comments in this file are in doxygen format.
*/
/** \file
*/
/** \def BOOST_VMD_IS_NUMBER(sequence)
\brief Tests whether a sequence is a Boost PP number.
The macro checks to see if a sequence is a Boost PP number.
A Boost PP number is a value from 0 to BOOST_PP_LIMIT_MAG.
sequence = a possible number
returns = 1 if the sequence is a Boost PP number,
0 if it is not.
If the input is not a VMD data type this macro could lead to
a preprocessor error. This is because the macro
uses preprocessor concatenation to determine if the input
is a number once it is determined that the input does not
start with parenthesis. If the data being concatenated would
lead to an invalid preprocessor token the compiler can issue
a preprocessor error.
*/
#define BOOST_VMD_IS_NUMBER(sequence) \
BOOST_VMD_DETAIL_IS_NUMBER(sequence) \
/**/
#endif /* BOOST_PP_VARIADICS */
#endif /* BOOST_VMD_IS_NUMBER_HPP */
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