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