Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit e028efd1e7.


//  (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


#include <boost/vmd/detail/setup.hpp>



  The succeeding comments in this file are in doxygen format.


/** \file

/** \def BOOST_VMD_ASSERT_IS_NUMBER(sequence)

    \brief Asserts that the sequence is a number.

    The macro checks that the parameter is a number.
    If it is not a number, it forces a compiler error.
    The macro normally checks for a number only in 
    debug mode. However an end-user can force the macro 
    to check or not check by defining the macro 
    BOOST_VMD_ASSERT_DATA to 1 or 0 respectively.

    sequence = a possible number.

    returns  = Normally the macro returns nothing. 
               If the sequence is a number, nothing is 
               For VC++, because there is no sure way of forcing  
               a compiler error from within a macro without producing
               output, if the sequence is not a number the 
               macro forces a compiler error by outputting invalid C++.
               For all other compilers a compiler error is forced 
               without producing output if the sequence is not a 


#define BOOST_VMD_ASSERT_IS_NUMBER(sequence)


#include <boost/vmd/assert.hpp>
#include <boost/vmd/is_number.hpp>

#define BOOST_VMD_ASSERT_IS_NUMBER(sequence) \
          ( \
          BOOST_VMD_IS_NUMBER(sequence), \
          ) \