/* RCODE.H - Parity chk and gen matrix storage, and procedures to read them.*//* Copyright (c) 2000 by Radford M. Neal  * * Permission is granted for anyone to copy, use, or modify this program  * for purposes of research or education, provided this copyright notice  * is retained, and note is made of any changes that have been made.  * * This program is distributed without any warranty, express or implied. * As this program was written for research purposes only, it has not been * tested to the degree that would be advisable in any important application. * All use of this program is entirely at the user's own risk. *//* VARIABLES HOLDING DATA READ.  These are declared for real in rcode.c. */extern mod2sparse *H;	/* Parity check matrix */extern int M;		/* Number of rows in parity check matrix */extern int N;		/* Number of columns in parity check matrix */extern char type;	/* Type of generator matrix representation */extern int *cols;	/* Ordering of columns in generator matrix */extern mod2sparse *L, *U; /* Sparse LU decomposition, if type=='s' */extern int *rows;	  /* Ordering of rows in generator matrix (type 's') */extern mod2dense *G;	/* Dense or mixed representation of generator matrix,			   if type=='d' or type=='m' *//* PROCEDURES FOR READING DATA. */void read_pchk (char *);void read_gen  (char *, int, int);