#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 #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