220 lines
4.8 KiB
C
220 lines
4.8 KiB
C
/*
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* math.h
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*
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* Mathematical functions.
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*
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* This file is part of the Mingw32 package.
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*
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* Contributors:
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* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAIMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Revision$
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* $Author$
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* $Date$
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*
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*/
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#ifndef _MATH_H_
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#define _MATH_H_
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/* All the headers include this file. */
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#include <_mingw.h>
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/*
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* Types for the _exception structure.
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*/
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#define _DOMAIN 1 /* domain error in argument */
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#define _SING 2 /* singularity */
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#define _OVERFLOW 3 /* range overflow */
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#define _UNDERFLOW 4 /* range underflow */
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#define _TLOSS 5 /* total loss of precision */
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#define _PLOSS 6 /* partial loss of precision */
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/*
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* Exception types with non-ANSI names for compatibility.
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*/
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#ifndef __STRICT_ANSI__
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#ifndef _NO_OLDNAMES
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#define DOMAIN _DOMAIN
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#define SING _SING
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#define OVERFLOW _OVERFLOW
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#define UNDERFLOW _UNDERFLOW
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#define TLOSS _TLOSS
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#define PLOSS _PLOSS
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#endif /* Not _NO_OLDNAMES */
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#endif /* Not __STRICT_ANSI__ */
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/* These are also defined in Mingw float.h; needed here as well to work
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around GCC build issues. */
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#ifndef __STRICT_ANSI__
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#ifndef __MINGW_FPCLASS_DEFINED
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#define __MINGW_FPCLASS_DEFINED 1
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#define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */
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#define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */
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#define _FPCLASS_NINF 0x0004 /* Negative Infinity */
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#define _FPCLASS_NN 0x0008 /* Negative Normal */
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#define _FPCLASS_ND 0x0010 /* Negative Denormal */
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#define _FPCLASS_NZ 0x0020 /* Negative Zero */
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#define _FPCLASS_PZ 0x0040 /* Positive Zero */
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#define _FPCLASS_PD 0x0080 /* Positive Denormal */
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#define _FPCLASS_PN 0x0100 /* Positive Normal */
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#define _FPCLASS_PINF 0x0200 /* Positive Infinity */
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#endif /* __MINGW_FPCLASS_DEFINED */
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#endif /* Not __STRICT_ANSI__ */
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#ifndef RC_INVOKED
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* HUGE_VAL is returned by strtod when the value would overflow the
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* representation of 'double'. There are other uses as well.
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*
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* __imp__HUGE is a pointer to the actual variable _HUGE in
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* MSVCRT.DLL. If we used _HUGE directly we would get a pointer
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* to a thunk function.
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*
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* NOTE: The CRTDLL version uses _HUGE_dll instead.
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*/
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#ifndef __DECLSPEC_SUPPORTED
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#ifdef __MSVCRT__
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extern double* __imp__HUGE;
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#define HUGE_VAL (*__imp__HUGE)
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#else
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/* CRTDLL */
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extern double* __imp__HUGE_dll;
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#define HUGE_VAL (*__imp__HUGE_dll)
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#endif
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#else /* __DECLSPEC_SUPPORTED */
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#ifdef __MSVCRT__
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__MINGW_IMPORT double _HUGE;
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#define HUGE_VAL _HUGE
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#else
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/* CRTDLL */
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__MINGW_IMPORT double _HUGE_dll;
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#define HUGE_VAL _HUGE_dll
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#endif
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#endif /* __DECLSPEC_SUPPORTED */
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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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};
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double sin (double);
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double cos (double);
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double tan (double);
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double sinh (double);
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double cosh (double);
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double tanh (double);
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double asin (double);
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double acos (double);
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double atan (double);
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double atan2 (double, double);
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double exp (double);
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double log (double);
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double log10 (double);
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double pow (double, double);
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double sqrt (double);
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double ceil (double);
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double floor (double);
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double fabs (double);
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double ldexp (double, int);
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double frexp (double, int*);
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double modf (double, double*);
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double fmod (double, double);
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#ifndef __STRICT_ANSI__
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/* Complex number (for cabs) */
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struct _complex
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{
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double x; /* Real part */
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double y; /* Imaginary part */
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};
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double _cabs (struct _complex);
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double _hypot (double, double);
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double _j0 (double);
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double _j1 (double);
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double _jn (int, double);
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double _y0 (double);
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double _y1 (double);
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double _yn (int, double);
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int _matherr (struct _exception *);
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/* These are also declared in Mingw float.h; needed here as well to work
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around GCC build issues. */
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/* BEGIN FLOAT.H COPY */
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/*
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* IEEE recommended functions
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*/
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double _chgsign (double);
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double _copysign (double, double);
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double _logb (double);
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double _nextafter (double, double);
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double _scalb (double, long);
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int _finite (double);
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int _fpclass (double);
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int _isnan (double);
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/* END FLOAT.H COPY */
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#ifndef _NO_OLDNAMES
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/*
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* Non-underscored versions of non-ANSI functions. These reside in
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* liboldnames.a. Provided for extra portability.
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*/
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double cabs (struct _complex);
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double hypot (double, double);
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double j0 (double);
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double j1 (double);
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double jn (int, double);
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double y0 (double);
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double y1 (double);
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double yn (int, double);
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#endif /* Not _NO_OLDNAMES */
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#endif /* Not __STRICT_ANSI__ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* Not RC_INVOKED */
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#endif /* Not _MATH_H_ */
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