box_floating_point.hpp

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#pragma once
#include "box_integer.hpp"
#include "decimal.hpp"
#define __XTD_CORE_INTERNAL__
#include "internal/__box_floating_point.hpp"
#undef __XTD_CORE_INTERNAL__

namespace xtd {
  template<class type_t>
  class box_floating_point : public xtd::box_integer<type_t> {
  public:
    box_floating_point() = default;
    box_floating_point(const type_t& value) : xtd::box_integer<type_t>(value) {}
    box_floating_point(const box_floating_point&) = default;
    box_floating_point(box_floating_point&&) = default;
    box_floating_point& operator =(const box_floating_point&) = default;
    
    
    static constexpr type_t epsilon = __get_epsilon(type_t{});
    static constexpr type_t NaN = std::numeric_limits<type_t>::quiet_NaN();
    static constexpr type_t negative_infinity = -std::numeric_limits<type_t>::infinity();
    static constexpr type_t positive_infinity = +std::numeric_limits<type_t>::infinity();
    
    
    static bool is_finite(type_t value) noexcept {return !is_infinity(value);}
    static bool is_infinity(type_t value) noexcept {return is_negative_infinity(value) || is_positive_infinity(value);}
    
    static bool is_negative_infinity(type_t value) noexcept {return value <= negative_infinity;}
    
    static bool is_positive_infinity(type_t value) noexcept {return value >= positive_infinity;}
    
    static bool is_NaN(type_t value) noexcept {return value != value;}
    
    static bool is_valid(std::floating_point auto value) noexcept {return !is_NaN(value) && !is_infinity(value) && value >= static_cast<xtd::decimal>(xtd::box_integer<type_t>::min_value) && value <= static_cast<xtd::decimal>(xtd::box_integer<type_t>::max_value);}
  };
}