.. _program_listing_file_include_ripple_utility_number.hpp:

Program Listing for File number.hpp
===================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_ripple_utility_number.hpp>` (``include/ripple/utility/number.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   #ifndef RIPPLE_UTILITY_NUMBER_HPP
   #define RIPPLE_UTILITY_NUMBER_HPP
   
   #include "portability.hpp"
   
   namespace ripple {
   
   template <size_t Value>
   struct Num {
     static constexpr auto value = size_t{Value};
   
     ripple_all constexpr operator size_t() const noexcept {
       return Value;
     }
   };
   
   template <int64_t Value>
   struct Int64 {
     static constexpr auto value = int64_t{Value};
   
     ripple_all constexpr operator int64_t() const noexcept {
       return Value;
     }
   };
   
   namespace detail {
   
   template <typename T>
   struct IsNumber {
     static constexpr bool value = false;
   };
   
   template <size_t Value>
   struct IsNumber<Num<Value>> {
     static constexpr bool value = true;
   };
   
   template <int64_t Value>
   struct IsNumber<Int64<Value>> {
     static constexpr bool value = true;
   };
   
   } // namespace detail
   
   template <typename T>
   static constexpr bool is_number_v = detail::IsNumber<std::decay_t<T>>::value;
   
   } // namespace ripple
   
   #endif // RIPPLE_UTILITY_NUMBER_HPP