wide_integer.h File Reference

Detailed Description

Wide-integer arithmetic.

Since the C++0x11 standard does not define integer types wider than 64 bits (i.e., uint64_t), we need to get creative. This file defines a templated struct that behaves like a very wide integer, signed or unsigned, including the same modulo-arithmetic guarantees. These are effectively fixed-width BigInteger analogues. Shorthand is provided for commonly-used sizes (e.g., int128_t, uint128_t, uint256_t).

See also

util::WideSigned, util::WideUnsigned

Definition in file wide_integer.h.

#include <satcat5/io_core.h>
#include <satcat5/log.h>
#include <satcat5/types.h>

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Classes
struct	satcat5::util::WideInteger< W >
	Wide-integer parent class. More...
struct	satcat5::util::WideSigned< W >
	Template for signed integers. More...
struct	satcat5::util::WideUnsigned< W >
	Template for unsigned integers. More...

Typedefs
typedef satcat5::util::WideSigned< 4 >	satcat5::util::int128_t
	Shorthand for commonly used sizes.
typedef satcat5::util::WideSigned< 8 >	satcat5::util::int256_t
	Shorthand for commonly used sizes.
typedef satcat5::util::WideSigned< 16 >	satcat5::util::int512_t
	Shorthand for commonly used sizes.
typedef satcat5::util::WideUnsigned< 4 >	satcat5::util::uint128_t
	Shorthand for commonly used sizes.
typedef satcat5::util::WideUnsigned< 8 >	satcat5::util::uint256_t
	Shorthand for commonly used sizes.
typedef satcat5::util::WideUnsigned< 16 >	satcat5::util::uint512_t
	Shorthand for commonly used sizes.

Functions
constexpr satcat5::util::int128_t	satcat5::util::INT128_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::int256_t	satcat5::util::INT256_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::int512_t	satcat5::util::INT512_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::int128_t	satcat5::util::INT128_ONE (u32(1))
	Shorthand for commonly used constants.
constexpr satcat5::util::int256_t	satcat5::util::INT256_ONE (u32(1))
	Shorthand for commonly used constants.
constexpr satcat5::util::int512_t	satcat5::util::INT512_ONE (u32(1))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint128_t	satcat5::util::UINT128_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint256_t	satcat5::util::UINT256_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint512_t	satcat5::util::UINT512_ZERO (u32(0))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint128_t	satcat5::util::UINT128_ONE (u32(1))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint256_t	satcat5::util::UINT256_ONE (u32(1))
	Shorthand for commonly used constants.
constexpr satcat5::util::uint512_t	satcat5::util::UINT512_ONE (u32(1))
	Shorthand for commonly used constants.