blob: e543f855c43b625d6ce463e3daa04b6dbb8d3dc1 (
plain) (
blame)
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
38
39
40
41
42
43
44
45
46
47
|
/*
* rpf.h
*
* Written by: Stefan Frank
* Richard Krampfl
* Ullrich Hafner
*
* This file is part of FIASCO (Fractal Image And Sequence COdec)
* Copyright (C) 1994-2000 Ullrich Hafner
*/
/*
* $Date: 2000/06/14 20:49:37 $
* $Author: hafner $
* $Revision: 5.1 $
* $State: Exp $
*/
#ifndef _RPF_H
#define _RPF_H
#include "types.h"
#include "fiasco.h"
typedef struct rpf
{
unsigned mantissa_bits; /* number of bits used for mantissa */
real_t range; /* scale value to [-range, +range] */
fiasco_rpf_range_e range_e;
} rpf_t;
int
rtob (real_t real, const rpf_t *rpf);
real_t
btor (int b, const rpf_t *rpf);
rpf_t *
alloc_rpf (unsigned mantissa, fiasco_rpf_range_e range);
extern const int RPF_ZERO;
#endif /* not _RPF_H */
|
