60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
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// (C) Copyright Edward Diener 2020
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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#if !defined(BOOST_VMD_IS_GENERAL_IDENTIFIER_HPP)
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#define BOOST_VMD_IS_GENERAL_IDENTIFIER_HPP
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#include <boost/vmd/detail/setup.hpp>
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#if BOOST_PP_VARIADICS
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#include <boost/vmd/detail/is_general_identifier.hpp>
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/*
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The succeeding comments in this file are in doxygen format.
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*/
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/** \file
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*/
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/** \def BOOST_VMD_IS_GENERAL_IDENTIFIER(...)
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\brief Tests whether a parameter is a general identifier.
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... = variadic parameters
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The first variadic parameter is required and it is the input to test.
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Passing more than one variadic argument is an error.
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@code
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returns = 1 if the parameter is any general identifier and only a single variadic argument is given, otherwise 0.
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@endcode
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The argument to the macro should be a single possible identifier
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and not a VMD sequence of preprocessor tokens.
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If the input is not a VMD data type this macro could lead to
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a preprocessor error. This is because the macro
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uses preprocessor concatenation to determine if the input
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is an identifier once it is determined that the input is not empty
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and does not start with parenthesis. If the data being concatenated would
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lead to an invalid preprocessor token the compiler can issue
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a preprocessor error.
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*/
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#define BOOST_VMD_IS_GENERAL_IDENTIFIER(...) \
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BOOST_VMD_DETAIL_IS_GENERAL_IDENTIFIER(__VA_ARGS__) \
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/**/
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#endif /* BOOST_PP_VARIADICS */
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#endif /* BOOST_VMD_IS_GENERAL_IDENTIFIER_HPP */
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