IEEE operations

Detailed Description

Operations related to classical IEEE functions and the floating representation of real numbers

most of the standard function are present, but their names and calls can slightly change.

• ifrexp and frexp are similar to std:frexp, but return a kumi::tuple of two values mantissa and exponent. For ifrexp the exponent is and integral value, but for frexp it is a floating value.
• mantissa and exponent also exists individually but TAKE CARE they are not equal to the pair returned by ifrexp
• nextafter comes along next and prev that can take a second scalar integral parameter say n which indicates one want the nth representable value that follows (resp. precedes) the first parameter.

Variables
constexpr auto	eve::bitofsign = functor<bitofsign_t>
	elementwise_callable object computing the bit of sign.
constexpr auto	eve::exponent = functor<exponent_t>
	elementwise_callable object computing the integral IEEE exponent of the floating value.
constexpr auto	eve::flush_denormal = functor<flush_denormal_t>
	elementwise_callable object computing flushing denormal values to 0.
constexpr auto	eve::ifrexp = functor<ifrexp_t>
	Computes the elementwise ieee pair of mantissa and exponent of the floating value,.
constexpr auto	eve::ilogb = functor<ilogb_t>
	elementwise_callable object computing the integral IEEE ilogb of the floating value.
constexpr auto	eve::ldexp = functor<ldexp_t>
	strict_elementwise callable computing \(\textstyle x 2^n\).
constexpr auto	eve::mantissa = functor<mantissa_t>
	elementwise_callable object computing the IEEE mantissa of the floating value.
constexpr auto	eve::nb_values = functor<nb_values_t>
	elementwise_callable object computing the number of values representable in the type between the arguments.
constexpr auto	eve::next = functor<next_t>
	strict_elementwise_callable computing the nth next representable element
constexpr auto	eve::nextafter = functor<nextafter_t>
	elementwise_callable object computing the next representable element element in the second parameter direction.
constexpr auto	eve::of_class = functor<of_class_t>
	strict_elementwise_callable object computing classification of elements of the input.
constexpr auto	eve::prev = functor<prev_t>
	Computes the nth previous representable element.
constexpr auto	eve::ulpdist = functor<ulpdist_t>
	Computes the unit in the last place distance of its arguments. i.e. the number of representable values between these two divided by 2.