/* Copyright (C) 1989-1991 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 above warranty information. * * Machine-independent I/O routines for IEEE floating-point numbers. * * NaN's and infinities are converted to HUGE_VAL or HUGE, which * happens to be infinity on IEEE machines. Unfortunately, it is * impossible to preserve NaN's in a machine-independent way. * Infinities are, however, preserved on IEEE 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 * Sequent Balance (Multiprocesor 386) * NeXT * * * 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. */ #ifndef IEEE_H #define IEEE_H #ifndef applec typedef double defdouble; #else applec typedef long double defdouble; #endif applec defdouble ConvertFromIeeeSingle( char *bytes); defdouble ConvertFromIeeeDouble( char *bytes); defdouble ConvertFromIeeeExtended(char *bytes); void ConvertToIeeeSingle( defdouble num, char *bytes); void ConvertToIeeeDouble( defdouble num, char *bytes); void ConvertToIeeeExtended(defdouble num, char *bytes); #endif