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PARITY.c.xx-xxx-xxx File Reference

Implements the callable interface for the PARITY calculation routines using a generic implementation. More...

#include "PBS/PARITY.h"

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Functions

int PARITY_calc8 (unsigned char byte)
 Calculates the parity over the 8 bits in the specified byte.
int PARITY_calc16 (unsigned short int hword)
 Calculates the parity over the 16 bits in the specified half word.
int PARITY_calc32 (unsigned int word)
 Calculates the parity over the 32 bits in the specified word.
int PARITY_calc64 (unsigned long long int ll)
 Calculates the parity over the 64 bits in the specified long long.
int PARITY_calc8N (const unsigned char *bytes, int nbytes)
 Calculates the parity over all the bits in the specified array of bytes.
int PARITY_calc16N (const unsigned short int *hwords, int nhwords)
 Calculates the parity over all the bits in the specified array of half words (16-bit integers).
int PARITY_calc32N (const unsigned int *words, int nwords)
 Calculates the parity over all the bits in the specified array of words (32-bit integers).
int PARITY_calc64N (const unsigned long long int *lls, int nlls)
 Calculates the parity over all the bits in the specified array of long longs (64-bit integers).
int PARITY_calcOdd8 (unsigned char byte)
 Calculates the odd parity over the 8 bits in the specified byte.
int PARITY_calcOdd16 (unsigned short int hword)
 Calculates the odd parity over the 16 bits in the specified half word.
int PARITY_calcOdd32 (unsigned int word)
 Calculates the odd parity over the 32 bits in the specified word.
int PARITY_calcOdd64 (unsigned long long int ll)
 Calculates the odd parity over the 64 bits in the specified long long.
int PARITY_calcOdd8N (const unsigned char *bytes, int nbytes)
 Calculates the odd parity over all the bits in the specified array of bytes.
int PARITY_calcOdd16N (const unsigned short int *hwords, int nhwords)
 Calculates the odd parity over all the bits in the specified array of half words (16-bit integers).
int PARITY_calcOdd32N (const unsigned int *words, int nwords)
 Calculates the odd parity over all the bits in the specified array of words (32-bit integers).
int PARITY_calcOdd64N (const unsigned long long int *lls, int nlls)
 Calculates the odd parity over all the bits in the specified array of long longs (64-bit integers).

Detailed Description

Implements the callable interface for the PARITY calculation routines using a generic implementation.

Author:
JJRussell - russell@slac.stanford.edu
    CVS $Id: PARITY.c.xx-xxx-xxx,v 1.2 2004/12/07 16:13:12 russell Exp $

The implementation is a generic one, suitable, but not optimized to the fullest for all platforms.

Function Documentation

int PARITY_calc16 (  unsigned short int  hword  ) 
 

Calculates the parity over the 16 bits in the specified half word.

Returns:
The parity, either 0 or 1, over the 16 bits the specified half word.
Parameters:
hword The half word (short int) to calculate the parity of.

int PARITY_calc16N (  const unsigned short int *  hwords,
int  nhwords
) 
 

Calculates the parity over all the bits in the specified array of half words (16-bit integers).

Returns:
The parity, either 0 or 1, over all the bits in the specified array of half words (16-bit integers). If a length of 0 is specified, 0 is returned.
Parameters:
hwords The array of half words (16-bit integers) to calculate the parity over.
nhwords The number of half words (16-bit integers) in the array.

int PARITY_calc32 (  unsigned int  word  ) 
 

Calculates the parity over the 32 bits in the specified word.

Returns:
The parity, either 0 or 1, over the 32 bits the specified word.
Parameters:
word The word to calculate the parity over.

int PARITY_calc32N (  const unsigned int *  words,
int  nwords
) 
 

Calculates the parity over all the bits in the specified array of words (32-bit integers).

Returns:
The parity, either 0 or 1, of the specified array of words. If a length of 0 is specified, 0 is returned.
Parameters:
words The array of words (ints) to calculate the parity over.
nwords The number of words (ints) in the array.

int PARITY_calc64 (  unsigned long long int  ll  ) 
 

Calculates the parity over the 64 bits in the specified long long.

Returns:
The parity, either 0 or 1, over the 64 bits the specified long long.
Parameters:
ll The long long word to calculate the parity over.

int PARITY_calc64N (  const unsigned long long int *  lls,
int  nlls
) 
 

Calculates the parity over all the bits in the specified array of long longs (64-bit integers).

Returns:
The parity, either 0 or 1, of the specified array of words. If a length of 0 is specified, 0 is returned.
Parameters:
lls The array of long longs to calculate the parity over.
nlls The number of long longs in the array.

int PARITY_calc8 (  unsigned char  byte  ) 
 

Calculates the parity over the 8 bits in the specified byte.

Returns:
The parity, either 0 or 1, over the 8 bits in the specified byte.
Parameters:
byte The byte to calculate the parity over.

int PARITY_calc8N (  const unsigned char *  bytes,
int  nbytes
) 
 

Calculates the parity over all the bits in the specified array of bytes.

Returns:
The parity, either 0 or 1, over the specified array of bytes. If a length of 0 is specified, 0 is returned.
Parameters:
bytes The array of bytes to calculate the parity over.
nbytes The number of bytes in array.

int PARITY_calcOdd16 (  unsigned short int  hword  ) 
 

Calculates the odd parity over the 16 bits in the specified half word.

Returns:
The odd parity, either 0 or 1, over the 16 bits the specified half word.
Parameters:
hword The half word (short int) to calculate the odd parity of.

int PARITY_calcOdd16N (  const unsigned short int *  hwords,
int  nhwords
) 
 

Calculates the odd parity over all the bits in the specified array of half words (16-bit integers).

Returns:
The odd parity, either 0 or 1, over all the bits in the specified array of half words (16-bit integers). If a length of 0 is specified, 1 is returned.
Parameters:
hwords The array of half words (16-bit integers) to calculate the odd parity over.
nhwords The number of half words (16-bit integers) in the array.

int PARITY_calcOdd32 (  unsigned int  word  ) 
 

Calculates the odd parity over the 32 bits in the specified word.

Returns:
The odd parity, either 0 or 1, over the 32 bits the specified word.
Parameters:
word The word to calculate the odd parity over.

int PARITY_calcOdd32N (  const unsigned int *  words,
int  nwords
) 
 

Calculates the odd parity over all the bits in the specified array of words (32-bit integers).

Returns:
The odd parity, either 0 or 1, of the specified array of words. If a length of 0 is specified, 1 is returned.
Parameters:
words The array of words (ints) to calculate the odd parity over.
nwords The number of words (ints) in the array.

int PARITY_calcOdd64 (  unsigned long long int  ll  ) 
 

Calculates the odd parity over the 64 bits in the specified long long.

Returns:
The odd parity, either 0 or 1, over the 64 bits the specified long long.
Parameters:
ll The long long word to calculate the parity odd over.

int PARITY_calcOdd64N (  const unsigned long long int *  lls,
int  nlls
) 
 

Calculates the odd parity over all the bits in the specified array of long longs (64-bit integers).

Returns:
The parity, either 0 or 1, of the specified array of words. If a length of 0 is specified, 1 is returned.
Parameters:
lls The array of long longs to calculate the parity over.
nlls The number of long longs in the array.

int PARITY_calcOdd8 (  unsigned char  byte  ) 
 

Calculates the odd parity over the 8 bits in the specified byte.

Returns:
The odd parity, either 0 or 1, over the 8 bits in the specified byte.
Parameters:
byte The byte to calculate the odd parity over.

int PARITY_calcOdd8N (  const unsigned char *  bytes,
int  nbytes
) 
 

Calculates the odd parity over all the bits in the specified array of bytes.

Returns:
The odd parity, either 0 or 1, over the specified array of bytes. If a length of 0 is specified, 1 is returned.
Parameters:
bytes The array of bytes to calculate the odd parity over.
nbytes The number of bytes in array.

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