summaryrefslogtreecommitdiffstats
path: root/pbn_div.c
blob: 6c169ace11b1f2c83ac2f5241bb6f7f7c16bc59e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/* ----------------------------------------------------------------------- *
 *   
 *   Copyright 2007 H. Peter Anvin - All Rights Reserved
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as
 *   published by the Free Software Foundation, Inc.,
 *   59 Temple Place Ste 330, Boston MA 02111-1307, USA; version 2.1,
 *   incorporated herein by reference.
 *
 * ----------------------------------------------------------------------- */

/*
 * pbn_div.c
 */

/* quotient, remainder, numerator, denominator

   The sign on the outputs = sign(numerator) XOR sign(denominator)

   Returns -1 on error (divide by zero) and frees the inputs */

#include "pbn.h"

int pbn_div(struct pbn **q, struct pbn **r, struct pbn *n, struct pbn *d)
{
    if (d->bits == 0) {
	pbn_free(n);
	pbn_free(d);
	return -1;		/* Division by zero */
    }

    

    
}