bertini::detail::Digest256 Struct Reference

A 256-bit content digest – the output of Sha256, used as a persistent identity key. More...

#include <sha256.hpp>

Public Member Functions
std::string	Hex () const
	The digest as 64 lowercase hex characters (the cross-session interchange form).
bool	operator== (Digest256 const &other) const
	Bytewise equality.
bool	operator!= (Digest256 const &other) const
	Bytewise inequality.
bool	operator< (Digest256 const &other) const
	Lexicographic byte order, so Digest256 can key ordered containers.

Public Attributes
std::array< std::uint8_t, 32 >	bytes {}
	The raw 32 digest bytes, big-endian word order per FIPS 180-4.

Detailed Description

A 256-bit content digest – the output of Sha256, used as a persistent identity key.

Value type with equality and ordering, so it can key std::map (the System intern table) and be compared across sessions via its hex rendering.

Member Function Documentation

Hex()

std::string bertini::detail::Digest256::Hex

(

)

const

The digest as 64 lowercase hex characters (the cross-session interchange form).

operator!=()

bool bertini::detail::Digest256::operator!= ( Digest256 const & other ) const

inline

Bytewise inequality.

operator<()

bool bertini::detail::Digest256::operator< ( Digest256 const & other ) const

inline

Lexicographic byte order, so Digest256 can key ordered containers.

operator==()

bool bertini::detail::Digest256::operator== ( Digest256 const & other ) const

inline

Bytewise equality.

Member Data Documentation

bytes

std::array<std::uint8_t, 32> bertini::detail::Digest256::bytes {}

The raw 32 digest bytes, big-endian word order per FIPS 180-4.