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73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
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/************************************************************
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Created: Monday, November 21, 1988 at 10:37 AM
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Values.h
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C Interface to the Macintosh Libraries
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Copyright Apple Computer, Inc. 1985-1991
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All rights reserved
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This file is used in these builds: ROM System
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Change History (most recent first):
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<5> 8/8/91 JL update copyright
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10 Oct 90 JAL removed HUGE_VAL.
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27 May 87 KLH added HUGE_VAL.
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*** MPW 2.1d1 ***
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9 Oct 87 KLH HIBITS & MAXSHORT "((" taken out on conversion to C++
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put back in.
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To Do:
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************************************************************/
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#ifndef __VALUES__
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#define __VALUES__
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#ifndef __SANE__
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#include <SANE.h>
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#endif
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#define BITSPERBYTE 8
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#define BITS(type) (BITSPERBYTE * (int)sizeof(type))
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#define HIBITS ((short)(1<<BITS(short)-1))
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#define HIBITI (1<<BITS(int)-1)
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#define HIBITL (1L<<BITS(long)-1)
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#define MAXSHORT ((short)~HIBITS)
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#define MAXINT (~HIBITI)
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#define MAXLONG (~HIBITL)
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#define MAXEXTENDED nextextended(inf(),0.0)
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#define MAXDOUBLE nextdouble(inf(),0.0)
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#define MAXFLOAT nextfloat(inf(),0.0)
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#define MINEXTENDED scalb(XMINEXP-1,1.0)
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#define MINDOUBLE scalb(DMINEXP-1,1.0)
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#define MINFLOAT scalb(FMINEXP-1,1.0)
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#define _IEEE 1
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#define _XEXPLEN 15
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#define _DEXPLEN 11
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#define _FEXPLEN 8
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#define _HIDDENBIT 1
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#define _XHIDDENBIT 0
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#define XMINEXP (-16382)
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#define DMINEXP (-1021)
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#define FMINEXP (-125)
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#define XMAXEXP 16384
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#define DMAXEXP 1024
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#define FMAXEXP 128
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#define _LENBASE 1
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#define _EXPBASE (1<<_LENBASE)
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#define XSIGNIF 64
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#define DSIGNIF 53
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#define FSIGNIF 24
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#define XMAXPOWTWO scalb(XSIGNIF-1,1.0)
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#define DMAXPOWTWO scalb(DSIGNIF-1,1.0)
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#define FMAXPOWTWO scalb(FSIGNIF-1,1.0)
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#define LN_MAXDOUBLE log(MAXDOUBLE)
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#define LN_MINDOUBLE log(MINDOUBLE)
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#define MAXCOMP (scalb(63,1.0)-1.0)
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#endif
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