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fec_imp.h  view on Meta::CPAN

#define bzero(d, siz)   memset((d), '\0', (siz))
#endif

/*
 * stuff used for testing purposes only
 */

#ifdef	TEST
#define DEB(x)
#define DDB(x) x
#define	DEBUG	0	/* minimal debugging */

#ifdef	MSDOS
#include <time.h>
struct timeval {
    unsigned long ticks;
};
#define gettimeofday(x, dummy) { (x)->ticks = clock() ; }
#define DIFF_T(a,b) (1+ 1000000*(a.ticks - b.ticks) / CLOCKS_PER_SEC )
typedef unsigned long u_long ;
typedef unsigned short u_short ;

fec_imp.h  view on Meta::CPAN

    int row, col ;
    for (row=0; row<k; row++)
	for (col=0; col<k; col++)
	    if ( (row==col && *m != 1) ||
		 (row!=col && *m != 0) )
		 return 0 ;
	    else
		m++ ;
    return 1 ;
}
#endif /* debug */

/*
 * invert_mat() takes a matrix and produces its inverse
 * k is the size of the matrix.
 * (Gauss-Jordan, adapted from Numerical Recipes in C)
 * Return non-zero if singular.
 */
DEB( int pivloops=0; int pivswaps=0 ; /* diagnostic */)
static int
invert_mat(gf *src, int k)