toolame-02l/portableio.h

   1 #ifndef PORTABLEIO_H__
   2 #define PORTABLEIO_H__
   3 /* Copyright (C) 1988-1991 Apple Computer, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Warranty Information
   7  * Even though Apple has reviewed this software, Apple makes no warranty
   8  * or representation, either express or implied, with respect to this
   9  * software, its quality, accuracy, merchantability, or fitness for a
  10  * particular purpose.  As a result, this software is provided "as is,"
  11  * and you, its user, are assuming the entire risk as to its quality
  12  * and accuracy.
  13  *
  14  * This code may be used and freely distributed as long as it includes
  15  * this copyright notice and the warranty information.
  16  *
  17  * Machine-independent I/O routines for 8-, 16-, 24-, and 32-bit integers.
  18  *
  19  * Motorola processors (Macintosh, Sun, Sparc, MIPS, etc)
  20  * pack bytes from high to low (they are big-endian).
  21  * Use the HighLow routines to match the native format
  22  * of these machines.
  23  *
  24  * Intel-like machines (PCs, Sequent)
  25  * pack bytes from low to high (the are little-endian).
  26  * Use the LowHigh routines to match the native format
  27  * of these machines.
  28  *
  29  * These routines have been tested on the following machines:
  30  *      Apple Macintosh, MPW 3.1 C compiler
  31  *      Apple Macintosh, THINK C compiler
  32  *      Silicon Graphics IRIS, MIPS compiler
  33  *      Cray X/MP and Y/MP
  34  *      Digital Equipment VAX
  35  *
  36  *
  37  * Implemented by Malcolm Slaney and Ken Turkowski.
  38  *
  39  * Malcolm Slaney contributions during 1988-1990 include big- and little-
  40  * endian file I/O, conversion to and from Motorola's extended 80-bit
  41  * FLOATing-point format, and conversions to and from IEEE single-
  42  * precision FLOATing-point format.
  43  *
  44  * In 1991, Ken Turkowski implemented the conversions to and from
  45  * IEEE double-precision format, added more precision to the extended
  46  * conversions, and accommodated conversions involving +/- infinity,
  47  * NaN's, and denormalized numbers.
  48  *
  49  * $Id: portableio.h,v 1.1 2003/10/04 00:11:19 herman Exp $
  50  *
  51  * $Log: portableio.h,v $
  52  * Revision 1.1  2003/10/04 00:11:19  herman
  53  * New file from 1.1.7 (not in 1.1.6) added from Rich's automakified src tree.
  54  *
  55  * Revision 1.1  2003/07/29 04:17:52  heroine
  56  * *** empty log message ***
  57  *
  58  * Revision 2.6  91/04/30  17:06:02  malcolm
  59  */
  60
  61 #include        <stdio.h>
  62 #include        "ieeefloat.h"
  63
  64 int ReadByte (FILE * fp);
  65 int Read16BitsLowHigh (FILE * fp);
  66 int Read16BitsHighLow (FILE * fp);
  67 void Write8Bits (FILE * fp, int i);
  68 void Write16BitsLowHigh (FILE * fp, int i);
  69 void Write16BitsHighLow (FILE * fp, int i);
  70 int Read24BitsHighLow (FILE * fp);
  71 int Read32Bits (FILE * fp);
  72 int Read32BitsHighLow (FILE * fp);
  73 void Write32Bits (FILE * fp, int i);
  74 void Write32BitsLowHigh (FILE * fp, int i);
  75 void Write32BitsHighLow (FILE * fp, int i);
  76 void ReadBytes (FILE * fp, char *p, int n);
  77 void ReadBytesSwapped (FILE * fp, char *p, int n);
  78 void WriteBytes (FILE * fp, char *p, int n);
  79 void WriteBytesSwapped (FILE * fp, char *p, int n);
  80 double ReadIeeeFloatHighLow (FILE * fp);
  81 double ReadIeeeFloatLowHigh (FILE * fp);
  82 double ReadIeeeDoubleHighLow (FILE * fp);
  83 double ReadIeeeDoubleLowHigh (FILE * fp);
  84 double ReadIeeeExtendedHighLow (FILE * fp);
  85 double ReadIeeeExtendedLowHigh (FILE * fp);
  86 void WriteIeeeFloatLowHigh (FILE * fp, double num);
  87 void WriteIeeeFloatHighLow (FILE * fp, double num);
  88 void WriteIeeeDoubleLowHigh (FILE * fp, double num);
  89 void WriteIeeeDoubleHighLow (FILE * fp, double num);
  90 void WriteIeeeExtendedLowHigh (FILE * fp, double num);
  91 void WriteIeeeExtendedHighLow (FILE * fp, double num);
  92
  93 #define Read32BitsLowHigh(f)    Read32Bits(f)
  94 #define WriteString(f,s)        fwrite(s,strlen(s),sizeof(char),f)
  95 #endif