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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#ifndef PORTABLEIO_H__
#define PORTABLEIO_H__
/* Copyright (C) 1988-1991 Apple Computer, Inc.
* All Rights Reserved.
*
* Warranty Information
* Even though Apple has reviewed this software, Apple makes no warranty
* or representation, either express or implied, with respect to this
* software, its quality, accuracy, merchantability, or fitness for a
* particular purpose. As a result, this software is provided "as is,"
* and you, its user, are assuming the entire risk as to its quality
* and accuracy.
*
* This code may be used and freely distributed as long as it includes
* this copyright notice and the warranty information.
*
* Machine-independent I/O routines for 8-, 16-, 24-, and 32-bit integers.
*
* Motorola processors (Macintosh, Sun, Sparc, MIPS, etc)
* pack bytes from high to low (they are big-endian).
* Use the HighLow routines to match the native format
* of these machines.
*
* Intel-like machines (PCs, Sequent)
* pack bytes from low to high (the are little-endian).
* Use the LowHigh routines to match the native format
* of these machines.
*
* These routines have been tested on the following machines:
* Apple Macintosh, MPW 3.1 C compiler
* Apple Macintosh, THINK C compiler
* Silicon Graphics IRIS, MIPS compiler
* Cray X/MP and Y/MP
* Digital Equipment VAX
*
*
* Implemented by Malcolm Slaney and Ken Turkowski.
*
* Malcolm Slaney contributions during 1988-1990 include big- and little-
* endian file I/O, conversion to and from Motorola's extended 80-bit
* FLOATing-point format, and conversions to and from IEEE single-
* precision FLOATing-point format.
*
* In 1991, Ken Turkowski implemented the conversions to and from
* IEEE double-precision format, added more precision to the extended
* conversions, and accommodated conversions involving +/- infinity,
* NaN's, and denormalized numbers.
*
* $Id: portableio.h,v 2.6 1991/04/30 17:06:02 malcolm Exp $
*
* $Log: portableio.h,v $
* Revision 2.6 91/04/30 17:06:02 malcolm
*/
#include <stdio.h>
#include "ieeefloat.h"
int ReadByte (FILE * fp);
int Read16BitsLowHigh (FILE * fp);
int Read16BitsHighLow (FILE * fp);
void Write8Bits (FILE * fp, int i);
void Write16BitsLowHigh (FILE * fp, int i);
void Write16BitsHighLow (FILE * fp, int i);
int Read24BitsHighLow (FILE * fp);
int Read32Bits (FILE * fp);
int Read32BitsHighLow (FILE * fp);
void Write32Bits (FILE * fp, int i);
void Write32BitsLowHigh (FILE * fp, int i);
void Write32BitsHighLow (FILE * fp, int i);
void ReadBytes (FILE * fp, char *p, int n);
void ReadBytesSwapped (FILE * fp, char *p, int n);
void WriteBytes (FILE * fp, char *p, int n);
void WriteBytesSwapped (FILE * fp, char *p, int n);
double ReadIeeeFloatHighLow (FILE * fp);
double ReadIeeeFloatLowHigh (FILE * fp);
double ReadIeeeDoubleHighLow (FILE * fp);
double ReadIeeeDoubleLowHigh (FILE * fp);
double ReadIeeeExtendedHighLow (FILE * fp);
double ReadIeeeExtendedLowHigh (FILE * fp);
void WriteIeeeFloatLowHigh (FILE * fp, double num);
void WriteIeeeFloatHighLow (FILE * fp, double num);
void WriteIeeeDoubleLowHigh (FILE * fp, double num);
void WriteIeeeDoubleHighLow (FILE * fp, double num);
void WriteIeeeExtendedLowHigh (FILE * fp, double num);
void WriteIeeeExtendedHighLow (FILE * fp, double num);
#define Read32BitsLowHigh(f) Read32Bits(f)
#define WriteString(f,s) fwrite(s,strlen(s),sizeof(char),f)
#endif
|
