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FCrc

CRC hash generation for different types of input data

API > API/Runtime > API/Runtime/Core

CRC hash generation for different types of input data

   
Name FCrc
Type struct
Header File /Engine/Source/Runtime/Core/Public/Misc/Crc.h
Include Path #include "Misc/Crc.h"

Syntax

struct FCrc

Typedefs

Name Type Remarks Include Path
MemCrc32Functor uint32(*) Generates CRC hash of the memory area. Misc/Crc.h

Constants

Name Type Remarks Include Path
CRCTable_DEPRECATED uint32 DEPRECATED These tables and functions are deprecated because they're using tables and implementations which give values different from what a user of a typical CRC32 algorithm might expect. Misc/Crc.h
CRCTablesSB8 uint32 Lookup table with precalculated CRC values - slicing by 8 implementation Misc/Crc.h
CRCTablesSB8_DEPRECATED uint32 Lookup table with precalculated CRC values - slicing by 8 implementation Misc/Crc.h
MemCrc32Func MemCrc32Functor   Misc/Crc.h

Functions

Public

Static

Name Remarks Include Path Unreal Specifiers

static void Init()

 Initializes the CRC lookup table. Must be called before any of the CRC functions are used. Misc/Crc.h  

static uint32 MemCrc32 ( const void* Data,
int32 Length,
uint32 CRC
)

   Misc/Crc.h  

static uint32 StrCrc32 ( const CharType* Data,
uint32 CRC
)

 String CRC. Prefer Hash/Fnv.h for new code, CRCs are not very good and fairly slow. Misc/Crc.h  

static uint32 StrCrc32Len ( const CharType* Data,
int32 Length,
uint32 CRC
)

 String CRC. Prefer Hash/Fnv.h for new code, CRCs are not very good and fairly slow. Misc/Crc.h  

static uint32 TypeCrc32 ( const T& Data,
uint32 CRC
)

 Generates CRC hash of the element. Misc/Crc.h  

Deprecated Functions

Name Remarks Include Path Unreal Specifiers

static uint32 MemCrc_DEPRECATED ( const void* Data,
int32 Length,
uint32 CRC
)

 Generates CRC hash of the memory area Misc/Crc.h  

static uint32 StrCrc_DEPRECATED ( const CharType* Data
)

 String CRC. Misc/Crc.h  

static uint32 StrCrc_DEPRECATED ( const int32 DataLen,
const CharType* Data
)

 String CRC. Misc/Crc.h  

static uint32 Strihash_DEPRECATED ( const CharType* Data
)

 Case insensitive string hash function. Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const ANSICHAR* Data
)

   Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const WIDECHAR* Data
)

   Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const UTF8CHAR* Data
)

   Misc/Crc.h  

static uint32 Strihash_DEPRECATED ( const int32 DataLen,
const CharType* Data
)

   Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const int32 DataLen,
const ANSICHAR* Data
)

   Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const int32 DataLen,
const WIDECHAR* Data
)

   Misc/Crc.h  

uint32 Strihash_DEPRECATED ( const int32 DataLen,
const UTF8CHAR* Data
)

   Misc/Crc.h  

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