genericopenlibs/cstdlib/LINC/MATH.H
author Peter Fordham <peter.fordham@gmail.com>
Mon, 22 Mar 2010 12:54:15 -0700
branchCompilerCompatibility
changeset 11 8d1ef0d13f16
parent 0 e4d67989cc36
permissions -rw-r--r--
Bug 1697 - Restructed function control flow to aviod branching across initialization.
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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/**
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 @file
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 @publishedAll
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 @released
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*/
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#ifndef  _MATH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define  _MATH_H
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#include <sys/reent.h>
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#include <libc/machine/ieeefp.h>
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#include <_ansi.h>
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void MapSymbianErrorCodeToErrno(int, int);
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/**
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Reentrant ANSI C functions
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*/
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IMPORT_C double atan (double) __SOFTFP;
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IMPORT_C double cos (double) __SOFTFP;
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IMPORT_C double sin (double) __SOFTFP;
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IMPORT_C double tan (double) __SOFTFP;
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IMPORT_C double tanh (double) __SOFTFP;
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IMPORT_C double frexp (double, int *) __SOFTFP;
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IMPORT_C double modf (double, double *) __SOFTFP;
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IMPORT_C double ceil (double) __SOFTFP;
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IMPORT_C double fabs (double) __SOFTFP;
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IMPORT_C double floor (double) __SOFTFP;
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/**
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Non reentrant ANSI C functions.  
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*/
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#ifndef _REENT_ONLY
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IMPORT_C double acos (double) __SOFTFP;
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IMPORT_C double asin (double) __SOFTFP;
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IMPORT_C double atan2 (double, double) __SOFTFP;
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IMPORT_C double cosh (double) __SOFTFP;
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IMPORT_C double sinh (double) __SOFTFP;
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IMPORT_C double exp (double) __SOFTFP;
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IMPORT_C double ldexp (double, int) __SOFTFP;
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IMPORT_C double log (double) __SOFTFP;
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IMPORT_C double log10 (double) __SOFTFP;
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IMPORT_C double pow (double, double) __SOFTFP;
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IMPORT_C double sqrt (double) __SOFTFP;
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IMPORT_C double fmod (double, double) __SOFTFP;
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#endif /* ! defined (_REENT_ONLY) */
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/**
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Non ANSI functions provided by EPOC32 
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*/
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IMPORT_C double	copysign(double, double) __SOFTFP;
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IMPORT_C double	expm1	(double) __SOFTFP;
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IMPORT_C int	finite	(double) __SOFTFP;
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IMPORT_C int	isnan	(double) __SOFTFP;
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IMPORT_C int	isinf	(double) __SOFTFP;
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IMPORT_C double	rint	(double) __SOFTFP;
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IMPORT_C double	scalbn	(double, int) __SOFTFP;
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/**
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WARNING: For internal use ONLY. Compatibility is not guaranteed in future releases.
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strtod, atof, etc. may return HUGE_VAL 
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@internalComponent
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*/
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#define	HUGE_VAL	1.7976931348623157E+308 /* KMaxTReal from e32math.h */
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#ifndef _STRICT_ANSI
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/**
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Non ANSI double precision functions.  
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*/
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extern double infinity (void);
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extern double nan (void);
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extern int ilogb (double);
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extern double asinh (double);
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extern double cbrt (double);
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extern double nextafter (double, double);
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extern double log1p (double);
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#ifndef _REENT_ONLY
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extern double acosh (double);
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extern double atanh (double);
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extern double remainder (double, double);
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extern double gamma (double);
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extern double gamma_r (double, int *);
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extern double lgamma (double);
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extern double lgamma_r (double, int *);
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extern double erf (double);
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extern double erfc (double);
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extern double y0 (double);
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extern double y1 (double);
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extern double yn (int, double);
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extern double j0 (double);
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extern double j1 (double);
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extern double jn (int, double);
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#define log2(x) (log (x) / M_LOG2_E)
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extern double hypot (double, double);
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extern double cabs();
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extern double drem (double, double);
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#endif /* ! defined (_REENT_ONLY) */
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/**
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Single precision versions of ANSI functions.  
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*/
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extern float atanf (float);
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extern float cosf (float);
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extern float sinf (float);
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extern float tanf (float);
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extern float tanhf (float);
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extern float frexpf (float, int *);
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extern float modff (float, float *);
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extern float ceilf (float);
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extern float fabsf (float);
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extern float floorf (float);
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#ifndef _REENT_ONLY
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extern float acosf (float);
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extern float asinf (float);
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extern float atan2f (float, float);
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extern float coshf (float);
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extern float sinhf (float);
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extern float expf (float);
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extern float ldexpf (float, int);
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extern float logf (float);
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extern float log10f (float);
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extern float powf (float, float);
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extern float sqrtf (float);
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extern float fmodf (float, float);
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#endif /* ! defined (_REENT_ONLY) */
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/**
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Other single precision functions.  
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*/
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extern float infinityf (void);
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extern float nanf (void);
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extern int isnanf (float);
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extern int isinff (float);
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extern int finitef (float);
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extern float copysignf (float, float);
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extern int ilogbf (float);
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extern float asinhf (float);
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extern float cbrtf (float);
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extern float nextafterf (float, float);
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extern float rintf (float);
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extern float scalbnf (float, int);
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extern float log1pf (float);
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extern float expm1f (float);
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#ifndef _REENT_ONLY
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extern float acoshf (float);
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extern float atanhf (float);
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extern float remainderf (float, float);
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extern float gammaf (float);
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extern float gammaf_r (float, int *);
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extern float lgammaf (float);
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extern float lgammaf_r (float, int *);
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extern float erff (float);
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extern float erfcf (float);
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extern float y0f (float);
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extern float y1f (float);
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extern float ynf (int, float);
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extern float j0f (float);
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extern float j1f (float);
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extern float jnf (int, float);
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#define log2f(x) (logf (x) / (float) M_LOG2_E)
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extern float hypotf (float, float);
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extern float cabsf();
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extern float dremf (float, float);
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#endif /* ! defined (_REENT_ONLY) */
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/**
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The gamma functions use a global variable, signgam.
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*/
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extern int signgam;
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/** 
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The exception structure passed to the matherr routine.  
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*/
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struct exception 
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{
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  int type;
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  char *name;
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  double arg1;
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  double arg2;
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  double retval;
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  int err;
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};
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extern int matherr (struct exception *e);
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/**
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Values for the type field of struct exception.  
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*/
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#define DOMAIN 1
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#define SING 2
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#define OVERFLOW 3
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#define UNDERFLOW 4
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#define TLOSS 5
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#define PLOSS 6
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/** 
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Useful constants.  
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*/
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#define M_E		2.7182818284590452354
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#define M_LOG2E		1.4426950408889634074
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#define M_LOG10E	0.43429448190325182765
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#define M_LN2		0.69314718055994530942
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#define M_LN10		2.30258509299404568402
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#define M_PI		3.14159265358979323846
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#define M_TWOPI         (M_PI * 2.0)
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#define M_PI_2		1.57079632679489661923
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#define M_PI_4		0.78539816339744830962
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#define M_3PI_4		2.3561944901923448370E0
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#define M_SQRTPI        1.77245385090551602792981
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#define M_1_PI		0.31830988618379067154
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#define M_2_PI		0.63661977236758134308
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#define M_2_SQRTPI	1.12837916709551257390
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#define M_SQRT2		1.41421356237309504880
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#define M_SQRT1_2	0.70710678118654752440
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#define M_LN2LO         1.9082149292705877000E-10
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#define M_LN2HI         6.9314718036912381649E-1
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#define M_SQRT3   	1.73205080756887719000
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#define M_IVLN10        0.43429448190325182765 /* 1 / log(10) */
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#define M_LOG2_E        0.693147180559945309417
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#define M_INVLN2        1.4426950408889633870E0  /* 1 / log(2) */
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/**
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Global control over fdlibm error handling.  
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*/
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enum __fdlibm_version
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{
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  __fdlibm_ieee = -1,
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  __fdlibm_svid,
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  __fdlibm_xopen,
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  __fdlibm_posix
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};
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#define _LIB_VERSION_TYPE enum __fdlibm_version
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#define _LIB_VERSION __fdlib_version
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extern _LIB_VERSION_TYPE _LIB_VERSION;
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#define _IEEE_  __fdlibm_ieee
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#define _SVID_  __fdlibm_svid
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#define _XOPEN_ __fdlibm_xopen
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#define _POSIX_ __fdlibm_posix
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#endif /* ! defined (_STRICT_ANSI) */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _MATH_H */