/* DEC.H - Interface to decoding procedures. */
/* Copyright (c) 1995-2012 by Radford M. Neal.
*
* Permission is granted for anyone to copy, use, modify, and distribute
* these programs and accompanying documents for any purpose, provided
* this copyright notice is retained and prominently displayed, and note
* is made of any changes made to these programs. These programs and
* documents are distributed without any warranty, express or implied.
* As the programs were written for research purposes only, they have not
* been tested to the degree that would be advisable in any important
* application. All use of these programs is entirely at the user's own
* risk.
*/
/* DECODING METHOD, ITS PARAMETERS, AND OTHER VARIABLES. The global variables
declared here are located in dec.c. */
typedef enum
{ Enum_block, Enum_bit, Prprp
} decoding_method;
extern decoding_method dec_method; /* Decoding method to use */
extern int table; /* Trace option, 2 for a table of decoding details */
extern int block_no; /* Number of current block, from zero */
extern int max_iter; /* Maximum number of iteratons of decoding to do */
extern char *gen_file; /* Generator file for Enum_block and Enum_bit */
/* PROCEDURES RELATING TO DECODING METHODS. */
void enum_decode_setup (void);
unsigned enum_decode (double *, char *, double *, int);
void prprp_decode_setup (void);
unsigned prprp_decode
(mod2sparse *, double *, char *, char *, double *);
void initprp (mod2sparse *, double *, char *, double *);
void iterprp (mod2sparse *, double *, char *, double *);