uint128.hpp File Reference

Defines uint128_t, a portable 128-bit unsigned integer type. More...

#include "config.hpp"
#include "hash.hpp"
#include "optional.hpp"

Go to the source code of this file.

Classes
class	uint128_t
	Class for representing a 128-bit unsigned integer. More...

Namespaces
namespace	ipaddress
	Namespace dedicated to IP addresses and networks operations.

Functions
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator+ (T lower, const uint128_t &value) noexcept
	Performs addition between an integer and a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator- (T lower, const uint128_t &value) noexcept
	Performs subtraction of a uint128_t value from an integer.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator* (T lower, const uint128_t &value) noexcept
	Performs multiplication between an integer and a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator/ (T lower, const uint128_t &value) noexcept
	Performs division of an integer by a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator% (T lower, const uint128_t &value) noexcept
	Calculates the remainder of division of an integer by a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator& (T lower, const uint128_t &value) noexcept
	Performs bitwise AND operation between an integer and a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator| (T lower, const uint128_t &value) noexcept
	Performs bitwise OR operation between an integer and a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
constexpr inline uint128_t	operator^ (T lower, const uint128_t &value) noexcept
	Performs bitwise XOR operation between an integer and a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator== (T lower, const uint128_t &other) noexcept
	Checks if an integer value is equal to a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator!= (T lower, const uint128_t &other) noexcept
	Checks if an integer value is not equal to a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator< (T lower, const uint128_t &other) noexcept
	Compares if an integer value is less than a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator> (T lower, const uint128_t &other) noexcept
	Compares if an integer value is greater than a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator<= (T lower, const uint128_t &other) noexcept
	Compares if an integer value is less than or equal to a uint128_t value.
template<typename T , typename = typename std::enable_if<std::is_integral<T>::value, T>::type>
constexpr inline bool	operator>= (T lower, const uint128_t &other) noexcept
	Compares if an integer value is greater than or equal to a uint128_t value.

Detailed Description

Defines uint128_t, a portable 128-bit unsigned integer type.

Author

Vladimir Shaleev

Copyright

MIT License

This header introduces uint128_t, a class that emulates a 128-bit unsigned integer. It is designed to fill the gap in the C++ standard, which does not natively support 128-bit integers across all platforms. Unlike compiler-specific extensions like __int128, uint128_t ensures compatibility and portability across different compilers and architectures. The implementation is inspired by the algorithms used in the .NET framework's UInt128, providing a reliable foundation for arithmetic operations and other integer-related functionalities. The class integrates seamlessly with the ipaddress library, offering standard hash support and optional type compatibility.

The uint128_t type is especially useful in applications requiring precise control over large integer values, such as cryptography, high-precision arithmetic, and IP address manipulation. Its design prioritizes accuracy, making it a robust tool for developers working with high-volume data or complex numerical computations.