add is_number

[gpeterhoff]

is_number.hpp

//	Distributed under the Boost Software License Version 1.0 https://www.boost.org/LICENSE_1_0.txt
//	Copyright Gero Peterhoff

#ifndef BOOST_TYPE_TRAITS_IS_NUMBER_HPP
#define BOOST_TYPE_TRAITS_IS_NUMBER_HPP

#include <boost/type_traits/is_floating_point.hpp>
#include <boost/type_traits/is_integer.hpp>



namespace boost
{
template <typename Type>
struct is_number : public integral_constant
<
	bool,
	is_floating_point<Type>::value || is_integer<Type>::value
>	{};



#if !defined(BOOST_NO_CXX17_INLINE_VARIABLES)
template <typename Type> inline constexpr bool is_number_v = is_number<Type>::value;
#endif
}	//	boost

#endif	//	BOOST_TYPE_TRAITS_IS_NUMBER_HPP

[jzmaddock]

This is spelled is_arithmetic.

[gpeterhoff]

No! is_arithmetic contains characters and bool.

please open this issues.

[pdimov]

If added should probably be is_numeric.