FMLiveSwitchCrc32 Class Reference

Calculates CRC32 checksums. More...

Instance Methods
(NSString *)	- computeHexWithBytes:
	Computes the 32-bit CRC hex string for an array of bytes. More...
(NSString *)	- computeHexWithBytes:offset:
	Computes the 32-bit CRC hex string for an array of bytes. More...
(NSString *)	- computeHexWithBytes:offset:length:
	Computes the 32-bit CRC hex string for an array of bytes. More...
(long long)	- computeWithBytes:
	Computes the 32-bit CRC for an array of bytes. More...
(long long)	- computeWithBytes:offset:
	Computes the 32-bit CRC for an array of bytes. More...
(long long)	- computeWithBytes:offset:length:
	Computes the 32-bit CRC for an array of bytes. More...
(long long)	- finalXorValue
	Gets the value used to XOR the final result. More...
(instancetype)	- init
	Initializes a new instance of the FMLiveSwitchCrc32 class using the CRC32 polynomial. More...
(long long)	- initialValue
	Gets the initial value. More...
(instancetype)	- initWithPolynomial:
	Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial. More...
(instancetype)	- initWithPolynomial:reverseBits:
	Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial. More...
(long long)	- polynomial
	Gets the polynomial. More...
(bool)	- reverseBits
	Gets a value indicating whether to reverse the bits. More...
(void)	- setFinalXorValue:
	Sets the value used to XOR the final result. More...
(void)	- setInitialValue:
	Sets the initial value. More...

Class Methods
(FMLiveSwitchCrc32 *)	+ crc32
	Initializes a new instance of the FMLiveSwitchCrc32 class using the CRC32 polynomial. More...
(long long)	+ crc32cPolynomial
	Gets the CRC32c polynomial. More...
(long long)	+ crc32dPolynomial
	Gets the CRC32d polynomial. More...
(long long)	+ crc32Polynomial
	Gets the CRC32 polynomial. More...
(FMLiveSwitchCrc32 *)	+ crc32WithPolynomial:
	Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial. More...
(FMLiveSwitchCrc32 *)	+ crc32WithPolynomial:reverseBits:
	Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial. More...

Detailed Description

Calculates CRC32 checksums.

Method Documentation

computeHexWithBytes:

- (NSString*) computeHexWithBytes:

(NSMutableData *)

bytes

Computes the 32-bit CRC hex string for an array of bytes.

Parameters

bytes

The bytes.

computeHexWithBytes:offset:

- (NSString*) computeHexWithBytes:		(NSMutableData *)	bytes
offset:		(int)	offset

Computes the 32-bit CRC hex string for an array of bytes.

Parameters

bytes	The bytes.
offset	The offset.

computeHexWithBytes:offset:length:

- (NSString*) computeHexWithBytes:		(NSMutableData *)	bytes
offset:		(int)	offset
length:		(int)	length

Computes the 32-bit CRC hex string for an array of bytes.

Parameters

bytes	The bytes.
offset	The offset.
length	The length.

computeWithBytes:

- (long long) computeWithBytes:

(NSMutableData *)

bytes

Computes the 32-bit CRC for an array of bytes.

Parameters

bytes

The bytes.

computeWithBytes:offset:

- (long long) computeWithBytes:		(NSMutableData *)	bytes
offset:		(int)	offset

Computes the 32-bit CRC for an array of bytes.

Parameters

bytes	The bytes.
offset	The offset.

computeWithBytes:offset:length:

- (long long) computeWithBytes:		(NSMutableData *)	bytes
offset:		(int)	offset
length:		(int)	length

Computes the 32-bit CRC for an array of bytes.

Parameters

bytes	The bytes.
offset	The offset.
length	The length.

crc32

+ (FMLiveSwitchCrc32*) crc32

Initializes a new instance of the FMLiveSwitchCrc32 class using the CRC32 polynomial.

crc32cPolynomial

+ (long long) crc32cPolynomial

Gets the CRC32c polynomial.

crc32dPolynomial

+ (long long) crc32dPolynomial

Gets the CRC32d polynomial.

crc32Polynomial

+ (long long) crc32Polynomial

Gets the CRC32 polynomial.

crc32WithPolynomial:

+ (FMLiveSwitchCrc32*) crc32WithPolynomial:

(long long)

polynomial

Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial.

Parameters

polynomial

The polynomial.

crc32WithPolynomial:reverseBits:

+ (FMLiveSwitchCrc32*) crc32WithPolynomial:		(long long)	polynomial
reverseBits:		(bool)	reverseBits

Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial.

Parameters

polynomial	The polynomial.
reverseBits	Whether to reverse the bits.

finalXorValue

- (long long) finalXorValue

Gets the value used to XOR the final result.

init

- (instancetype) init

Initializes a new instance of the FMLiveSwitchCrc32 class using the CRC32 polynomial.

initialValue

- (long long) initialValue

Gets the initial value.

initWithPolynomial:

- (instancetype) initWithPolynomial:

(long long)

polynomial

Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial.

Parameters

polynomial

The polynomial.

initWithPolynomial:reverseBits:

- (instancetype) initWithPolynomial:		(long long)	polynomial
reverseBits:		(bool)	reverseBits

Initializes a new instance of the FMLiveSwitchCrc32 class using the specified polynomial.

Parameters

polynomial	The polynomial.
reverseBits	Whether to reverse the bits.

polynomial

- (long long) polynomial

Gets the polynomial.

reverseBits

- (bool) reverseBits

Gets a value indicating whether to reverse the bits.

setFinalXorValue:

- (void) setFinalXorValue:

(long long)

value

Sets the value used to XOR the final result.

setInitialValue:

- (void) setInitialValue:

(long long)

value

Sets the initial value.