Hashing and compression

Hashing and compression utilities. More...

Collaboration diagram for Hashing and compression:

Classes
class	sen::GradientNoise< FloatType, dimensionCount >
	Utility class for generating n-dimensional noise. Mainly useful in tests and examples. More...

Functions
template<typename InputIterator>
u32	sen::crc32 (InputIterator first, InputIterator last) noexcept
	Calculates the CRC32 for any sequence of values. (You could use type traits and a static assert to ensure the values can be converted to 8 bits.).
u32	sen::crc32 (std::string_view str) noexcept
	CRC32 for strings.
template<typename... Types>
u32	sen::hashCombine (u32 seed, const Types &... args) noexcept
	Combines the hash of different values into a single 32-bit hash.
template<typename... Types>
uint_fast32_t	sen::platformDependentHashCombine (uint_fast32_t seed, const Types &... args) noexcept
	Old version of the hashCombine method. The current one replaced this implementation to allow sen processes to discover and connect themselves between platforms (Windows and Linux). We keep this old implementation to enable replaying Sen recordings generated with the old hashes.
unsigned char *	sen::decompressSymbol (const void *compressedData)
	Decompresses a blob into its original shape.
std::string	sen::decompressSymbolToString (const void *compressedData, unsigned int originalSize)
	Decompresses a blob into a string.
bool	sen::fileToCompressedArrayFile (const std::filesystem::path &inputFile, std::string_view symbolName, const std::filesystem::path &outputFile)
	Creates a C++ source file that contains an array representing the contents of another file.

Variables
constexpr u32	sen::hashSeed = 23835769U
	Initial seed for all hashes.
constexpr u32	sen::propertyHashSeed = 19830715U
constexpr u32	sen::methodHashSeed = 93580253U
constexpr u32	sen::eventHashSeed = 12125807U
constexpr u32	sen::nonPresentTypeHash = 18121997U
	This hash is combined when no Type is found in a certain spec.

Detailed Description

Hashing and compression utilities.

Function Documentation

crc32() [1/2]

template<typename InputIterator>

u32 sen::crc32 ( InputIterator first, InputIterator last )

inlinenodiscardnoexcept

Calculates the CRC32 for any sequence of values. (You could use type traits and a static assert to ensure the values can be converted to 8 bits.).

crc32() [2/2]

u32 sen::crc32 ( std::string_view str )

inlinenodiscardnoexcept

CRC32 for strings.

hashCombine()

template<typename... Types>

u32 sen::hashCombine ( u32 seed, const Types &... args )

inlinenodiscardnoexcept

Combines the hash of different values into a single 32-bit hash.

platformDependentHashCombine()

template<typename... Types>

uint_fast32_t sen::platformDependentHashCombine ( uint_fast32_t seed, const Types &... args )

nodiscardnoexcept

Old version of the hashCombine method. The current one replaced this implementation to allow sen processes to discover and connect themselves between platforms (Windows and Linux). We keep this old implementation to enable replaying Sen recordings generated with the old hashes.

decompressSymbol()

unsigned char * sen::decompressSymbol

(

const void *

compressedData

)

Decompresses a blob into its original shape.

decompressSymbolToString()

std::string sen::decompressSymbolToString ( const void * compressedData, unsigned int originalSize )

nodiscard

Decompresses a blob into a string.

fileToCompressedArrayFile()

bool sen::fileToCompressedArrayFile ( const std::filesystem::path & inputFile, std::string_view symbolName, const std::filesystem::path & outputFile )

nodiscard

Creates a C++ source file that contains an array representing the contents of another file.

Variable Documentation

hashSeed

u32 sen::hashSeed = 23835769U

constexpr

Initial seed for all hashes.

propertyHashSeed

u32 sen::propertyHashSeed = 19830715U

constexpr

methodHashSeed

u32 sen::methodHashSeed = 93580253U

constexpr

eventHashSeed

u32 sen::eventHashSeed = 12125807U

constexpr

nonPresentTypeHash

u32 sen::nonPresentTypeHash = 18121997U

constexpr

This hash is combined when no Type is found in a certain spec.