holdingarea/llvm/llvm-gcc4.2-2.7-x86-mingw32/include/math.h
branchbug235_bringup_0
changeset 20 d2d6724aef32
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/holdingarea/llvm/llvm-gcc4.2-2.7-x86-mingw32/include/math.h	Thu Sep 16 09:43:14 2010 +0100
@@ -0,0 +1,848 @@
+/* 
+ * math.h
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is a part of the mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within the package.
+ *
+ * Mathematical functions.
+ *
+ */
+
+
+#ifndef _MATH_H_
+#define _MATH_H_
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+/* All the headers include this file. */
+#include <_mingw.h>
+
+/*
+ * Types for the _exception structure.
+ */
+
+#define	_DOMAIN		1	/* domain error in argument */
+#define	_SING		2	/* singularity */
+#define	_OVERFLOW	3	/* range overflow */
+#define	_UNDERFLOW	4	/* range underflow */
+#define	_TLOSS		5	/* total loss of precision */
+#define	_PLOSS		6	/* partial loss of precision */
+
+/*
+ * Exception types with non-ANSI names for compatibility.
+ */
+
+#ifndef	__STRICT_ANSI__
+#ifndef	_NO_OLDNAMES
+
+#define	DOMAIN		_DOMAIN
+#define	SING		_SING
+#define	OVERFLOW	_OVERFLOW
+#define	UNDERFLOW	_UNDERFLOW
+#define	TLOSS		_TLOSS
+#define	PLOSS		_PLOSS
+
+#endif	/* Not _NO_OLDNAMES */
+#endif	/* Not __STRICT_ANSI__ */
+
+
+/* Traditional/XOPEN math constants (double precison) */
+#ifndef __STRICT_ANSI__
+#define M_E		2.7182818284590452354
+#define M_LOG2E		1.4426950408889634074
+#define M_LOG10E	0.43429448190325182765
+#define M_LN2		0.69314718055994530942
+#define M_LN10		2.30258509299404568402
+#define M_PI		3.14159265358979323846
+#define M_PI_2		1.57079632679489661923
+#define M_PI_4		0.78539816339744830962
+#define M_1_PI		0.31830988618379067154
+#define M_2_PI		0.63661977236758134308
+#define M_2_SQRTPI	1.12837916709551257390
+#define M_SQRT2		1.41421356237309504880
+#define M_SQRT1_2	0.70710678118654752440
+#endif
+
+/* These are also defined in Mingw float.h; needed here as well to work 
+   around GCC build issues.  */
+#ifndef	__STRICT_ANSI__
+#ifndef __MINGW_FPCLASS_DEFINED
+#define __MINGW_FPCLASS_DEFINED 1
+/* IEEE 754 classication */
+#define	_FPCLASS_SNAN	0x0001	/* Signaling "Not a Number" */
+#define	_FPCLASS_QNAN	0x0002	/* Quiet "Not a Number" */
+#define	_FPCLASS_NINF	0x0004	/* Negative Infinity */
+#define	_FPCLASS_NN	0x0008	/* Negative Normal */
+#define	_FPCLASS_ND	0x0010	/* Negative Denormal */
+#define	_FPCLASS_NZ	0x0020	/* Negative Zero */
+#define	_FPCLASS_PZ	0x0040	/* Positive Zero */
+#define	_FPCLASS_PD	0x0080	/* Positive Denormal */
+#define	_FPCLASS_PN	0x0100	/* Positive Normal */
+#define	_FPCLASS_PINF	0x0200	/* Positive Infinity */
+#endif /* __MINGW_FPCLASS_DEFINED */
+#endif	/* Not __STRICT_ANSI__ */
+
+#ifndef RC_INVOKED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * HUGE_VAL is returned by strtod when the value would overflow the
+ * representation of 'double'. There are other uses as well.
+ *
+ * __imp__HUGE is a pointer to the actual variable _HUGE in
+ * MSVCRT.DLL. If we used _HUGE directly we would get a pointer
+ * to a thunk function.
+ *
+ * NOTE: The CRTDLL version uses _HUGE_dll instead.
+ */
+
+#if __MINGW_GNUC_PREREQ(3, 3)
+#define	HUGE_VAL __builtin_huge_val()
+#else
+
+#ifndef __DECLSPEC_SUPPORTED
+
+#ifdef __MSVCRT__
+extern double*	_imp___HUGE;
+#define	HUGE_VAL	(*_imp___HUGE)
+#else
+/* CRTDLL */
+extern double*	_imp___HUGE_dll;
+#define	HUGE_VAL	(*_imp___HUGE_dll)
+#endif
+
+#else /* __DECLSPEC_SUPPORTED */
+
+#ifdef __MSVCRT__
+__MINGW_IMPORT double	_HUGE;
+#define	HUGE_VAL	_HUGE
+#else
+/* CRTDLL */
+__MINGW_IMPORT double	_HUGE_dll;
+#define	HUGE_VAL	_HUGE_dll
+#endif
+
+#endif /* __DECLSPEC_SUPPORTED */
+#endif /* __MINGW_GNUC_PREREQ(3, 3) */
+
+
+struct _exception
+{
+	int	type;
+	char	*name;
+	double	arg1;
+	double	arg2;
+	double	retval;
+};
+
+_CRTIMP double __cdecl sin (double);
+_CRTIMP double __cdecl cos (double);
+_CRTIMP double __cdecl tan (double);
+_CRTIMP double __cdecl sinh (double);
+_CRTIMP double __cdecl cosh (double);
+_CRTIMP double __cdecl tanh (double);
+_CRTIMP double __cdecl asin (double);
+_CRTIMP double __cdecl acos (double);
+_CRTIMP double __cdecl atan (double);
+_CRTIMP double __cdecl atan2 (double, double);
+_CRTIMP double __cdecl exp (double);
+_CRTIMP double __cdecl log (double);
+_CRTIMP double __cdecl log10 (double);
+_CRTIMP	double __cdecl pow (double, double);
+_CRTIMP double __cdecl sqrt (double);
+_CRTIMP double __cdecl ceil (double);
+_CRTIMP double __cdecl floor (double);
+_CRTIMP double __cdecl fabs (double);
+_CRTIMP double __cdecl ldexp (double, int);
+_CRTIMP double __cdecl frexp (double, int*);
+_CRTIMP double __cdecl modf (double, double*);
+_CRTIMP double __cdecl fmod (double, double);
+
+/* Excess precision when using a 64-bit mantissa for FPU math ops can
+   cause unexpected results with some of the MSVCRT math functions.  For
+   example, unless the function return value is stored (truncating to
+   53-bit mantissa), calls to pow with both x and y as integral values
+   sometimes produce a non-integral result.
+   One workaround is to reset the FPU env to 53-bit mantissa
+   by a call to fesetenv (FE_PC53_ENV).  Amother is to force storage
+   of the return value of individual math functions using wrappers.
+   NB, using these wrappers will disable builtin math functions and
+   hence disable the folding of function results at compile time when
+   arguments are constant.  */
+
+#if 0
+#define __DEFINE_FLOAT_STORE_MATHFN_D1(fn1)	\
+static __inline__ double			\
+__float_store_ ## fn1 (double x)		\
+{						\
+   __volatile__ double res = (fn1) (x);		\
+  return res;					\
+}
+
+#define __DEFINE_FLOAT_STORE_MATHFN_D2(fn2)	\
+static __inline__ double			\
+__float_store_ ## fn2 (double x, double y)	\
+{						\
+  __volatile__ double res = (fn2) (x, y);	\
+  return res;					\
+}
+#endif
+
+/* For example, here is how to force the result of the pow function
+   to be stored:   */
+#if 0
+#undef pow
+/* Define the ___float_store_pow function and use it instead of pow().  */
+__DEFINE_FLOAT_STORE_MATHFN_D2 (pow)
+#define pow __float_store_pow
+#endif
+
+#ifndef __STRICT_ANSI__
+
+/* Complex number (for _cabs). This is the MS version. The ISO
+   C99 counterpart _Complex is an intrinsic type in GCC and
+   'complex' is defined as a macro.  See complex.h  */
+struct _complex
+{
+	double	x;	/* Real part */
+	double	y;	/* Imaginary part */
+};
+
+_CRTIMP double __cdecl _cabs (struct _complex);
+
+_CRTIMP double __cdecl _hypot (double, double);
+_CRTIMP double __cdecl _j0 (double);
+_CRTIMP double __cdecl _j1 (double);
+_CRTIMP double __cdecl _jn (int, double);
+_CRTIMP double __cdecl _y0 (double);
+_CRTIMP double __cdecl _y1 (double);
+_CRTIMP double __cdecl _yn (int, double);
+_CRTIMP int __cdecl _matherr (struct _exception *);
+
+/* These are also declared in Mingw float.h; needed here as well to work 
+   around GCC build issues.  */
+/* BEGIN FLOAT.H COPY */
+/*
+ * IEEE recommended functions
+ */
+
+_CRTIMP double __cdecl _chgsign (double);
+_CRTIMP double __cdecl _copysign (double, double);
+_CRTIMP double __cdecl _logb (double);
+_CRTIMP double __cdecl _nextafter (double, double);
+_CRTIMP double __cdecl _scalb (double, long);
+
+_CRTIMP int __cdecl _finite (double);
+_CRTIMP int __cdecl _fpclass (double);
+_CRTIMP int __cdecl _isnan (double);
+
+/* END FLOAT.H COPY */
+
+
+/*
+ * Non-underscored versions of non-ANSI functions.
+ * These reside in liboldnames.a.
+ */
+
+#if !defined (_NO_OLDNAMES)
+
+_CRTIMP double __cdecl j0 (double);
+_CRTIMP double __cdecl j1 (double);
+_CRTIMP double __cdecl jn (int, double);
+_CRTIMP double __cdecl y0 (double);
+_CRTIMP double __cdecl y1 (double);
+_CRTIMP double __cdecl yn (int, double);
+
+_CRTIMP double __cdecl chgsign (double);
+_CRTIMP double __cdecl scalb (double, long);
+_CRTIMP int __cdecl finite (double);
+_CRTIMP int __cdecl fpclass (double);
+
+#define FP_SNAN    _FPCLASS_SNAN
+#define FP_QNAN    _FPCLASS_QNAN
+#define FP_NINF    _FPCLASS_NINF
+#define FP_PINF    _FPCLASS_PINF
+#define FP_NDENORM _FPCLASS_ND
+#define FP_PDENORM _FPCLASS_PD
+#define FP_NZERO   _FPCLASS_NZ
+#define FP_PZERO   _FPCLASS_PZ
+#define FP_NNORM   _FPCLASS_NN
+#define FP_PNORM   _FPCLASS_PN
+
+#endif /* Not _NO_OLDNAMES */
+
+/* This require msvcr70.dll or higher. */ 
+#if __MSVCRT_VERSION__ >= 0x0700
+_CRTIMP int __cdecl _set_SSE2_enable (int);
+#endif /* __MSVCRT_VERSION__ >= 0x0700 */
+
+
+#endif /* __STRICT_ANSI__ */
+
+
+#ifndef __NO_ISOCEXT
+#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
+	|| !defined __STRICT_ANSI__ || defined __cplusplus
+
+#if __MINGW_GNUC_PREREQ(3, 3)
+#define HUGE_VALF	__builtin_huge_valf()
+#define HUGE_VALL	__builtin_huge_vall()
+#define INFINITY	__builtin_inf()
+#define NAN		__builtin_nan("")
+#else
+extern const float __INFF;
+#define HUGE_VALF __INFF
+extern const long double  __INFL;
+#define HUGE_VALL __INFL
+#define INFINITY HUGE_VALF
+extern const double __QNAN;
+#define NAN __QNAN
+#endif /* __MINGW_GNUC_PREREQ(3, 3) */
+
+/* 7.12.3.1 */
+/*
+   Return values for fpclassify.
+   These are based on Intel x87 fpu condition codes
+   in the high byte of status word and differ from
+   the return values for MS IEEE 754 extension _fpclass()
+*/
+#define FP_NAN		0x0100
+#define FP_NORMAL	0x0400
+#define FP_INFINITE	(FP_NAN | FP_NORMAL)
+#define FP_ZERO		0x4000
+#define FP_SUBNORMAL	(FP_NORMAL | FP_ZERO)
+/* 0x0200 is signbit mask */
+
+
+/*
+  We can't inline float or double, because we want to ensure truncation
+  to semantic type before classification. 
+  (A normal long double value might become subnormal when 
+  converted to double, and zero when converted to float.)
+*/
+
+extern int __cdecl __fpclassifyf (float);
+extern int __cdecl __fpclassify (double);
+
+__CRT_INLINE int __cdecl __fpclassifyl (long double x){
+  unsigned short sw;
+  __asm__ ("fxam; fstsw %%ax;" : "=a" (sw): "t" (x));
+  return sw & (FP_NAN | FP_NORMAL | FP_ZERO );
+}
+
+#define fpclassify(x) (sizeof (x) == sizeof (float) ? __fpclassifyf (x)	  \
+		       : sizeof (x) == sizeof (double) ? __fpclassify (x) \
+		       : __fpclassifyl (x))
+
+/* 7.12.3.2 */
+#define isfinite(x) ((fpclassify(x) & FP_NAN) == 0)
+
+/* 7.12.3.3 */
+#define isinf(x) (fpclassify(x) == FP_INFINITE)
+
+/* 7.12.3.4 */
+/* We don't need to worry about truncation here:
+   A NaN stays a NaN. */
+
+__CRT_INLINE int __cdecl __isnan (double _x)
+{
+  unsigned short sw;
+  __asm__ ("fxam;"
+	   "fstsw %%ax": "=a" (sw) : "t" (_x));
+  return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
+    == FP_NAN;
+}
+
+__CRT_INLINE int __cdecl __isnanf (float _x)
+{
+  unsigned short sw;
+  __asm__ ("fxam;"
+	    "fstsw %%ax": "=a" (sw) : "t" (_x));
+  return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
+    == FP_NAN;
+}
+
+__CRT_INLINE int __cdecl __isnanl (long double _x)
+{
+  unsigned short sw;
+  __asm__ ("fxam;"
+	    "fstsw %%ax": "=a" (sw) : "t" (_x));
+  return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
+    == FP_NAN;
+}
+
+
+#define isnan(x) (sizeof (x) == sizeof (float) ? __isnanf (x)	\
+		  : sizeof (x) == sizeof (double) ? __isnan (x)	\
+		  : __isnanl (x))
+
+/* 7.12.3.5 */
+#define isnormal(x) (fpclassify(x) == FP_NORMAL)
+
+/* 7.12.3.6 The signbit macro */
+__CRT_INLINE int __cdecl __signbit (double x) {
+  unsigned short stw;
+  __asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
+  return (stw & 0x0200) != 0;
+}
+
+__CRT_INLINE int __cdecl __signbitf (float x) {
+  unsigned short stw;
+  __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
+  return (stw & 0x0200) != 0;
+}
+
+__CRT_INLINE int __cdecl __signbitl (long double x) {
+  unsigned short stw;
+  __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
+  return (stw & 0x0200) != 0;
+}
+
+#define signbit(x) (sizeof (x) == sizeof (float) ? __signbitf (x)	\
+		    : sizeof (x) == sizeof (double) ? __signbit (x)	\
+		    : __signbitl (x))
+
+/* 7.12.4 Trigonometric functions: Double in C89 */
+extern float __cdecl sinf (float);
+extern long double __cdecl sinl (long double);
+
+extern float __cdecl cosf (float);
+extern long double __cdecl cosl (long double);
+
+extern float __cdecl tanf (float);
+extern long double __cdecl tanl (long double);
+
+extern float __cdecl asinf (float);
+extern long double __cdecl asinl (long double);
+
+extern float __cdecl acosf (float);
+extern long double __cdecl acosl (long double);
+
+extern float __cdecl atanf (float);
+extern long double __cdecl atanl (long double);
+
+extern float __cdecl atan2f (float, float);
+extern long double __cdecl atan2l (long double, long double);
+
+/* 7.12.5 Hyperbolic functions: Double in C89  */
+__CRT_INLINE float __cdecl sinhf (float x)
+  {return (float) sinh (x);}
+extern long double __cdecl sinhl (long double);
+
+__CRT_INLINE float __cdecl coshf (float x)
+  {return (float) cosh (x);}
+extern long double __cdecl coshl (long double);
+
+__CRT_INLINE float __cdecl tanhf (float x)
+  {return (float) tanh (x);}
+extern long double __cdecl tanhl (long double);
+
+/* Inverse hyperbolic trig functions  */ 
+/* 7.12.5.1 */
+extern double __cdecl acosh (double);
+extern float __cdecl acoshf (float);
+extern long double __cdecl acoshl (long double);
+
+/* 7.12.5.2 */
+extern double __cdecl asinh (double);
+extern float __cdecl asinhf (float);
+extern long double __cdecl asinhl (long double);
+
+/* 7.12.5.3 */
+extern double __cdecl atanh (double);
+extern float __cdecl atanhf  (float);
+extern long double __cdecl atanhl (long double);
+
+/* Exponentials and logarithms  */
+/* 7.12.6.1 Double in C89 */
+__CRT_INLINE float __cdecl expf (float x)
+  {return (float) exp (x);}
+extern long double __cdecl expl (long double);
+
+/* 7.12.6.2 */
+extern double __cdecl exp2(double);
+extern float __cdecl exp2f(float);
+extern long double __cdecl exp2l(long double);
+
+/* 7.12.6.3 The expm1 functions */
+/* TODO: These could be inlined */
+extern double __cdecl expm1(double);
+extern float __cdecl expm1f(float);
+extern long double __cdecl expm1l(long double);
+
+/* 7.12.6.4 Double in C89 */
+__CRT_INLINE float __cdecl frexpf (float x, int* expn)
+  {return (float) frexp (x, expn);}
+extern long double __cdecl frexpl (long double, int*);
+
+/* 7.12.6.5 */
+#define FP_ILOGB0 ((int)0x80000000)
+#define FP_ILOGBNAN ((int)0x80000000)
+extern int __cdecl ilogb (double);
+extern int __cdecl ilogbf (float);
+extern int __cdecl ilogbl (long double);
+
+/* 7.12.6.6  Double in C89 */
+__CRT_INLINE float __cdecl ldexpf (float x, int expn)
+  {return (float) ldexp (x, expn);}
+extern long double __cdecl ldexpl (long double, int);
+
+/* 7.12.6.7 Double in C89 */
+extern float __cdecl logf (float);
+extern long double __cdecl logl (long double);
+
+/* 7.12.6.8 Double in C89 */
+extern float __cdecl log10f (float);
+extern long double __cdecl log10l (long double);
+
+/* 7.12.6.9 */
+extern double __cdecl log1p(double);
+extern float __cdecl log1pf(float);
+extern long double __cdecl log1pl(long double);
+
+/* 7.12.6.10 */
+extern double __cdecl log2 (double);
+extern float __cdecl log2f (float);
+extern long double __cdecl log2l (long double);
+
+/* 7.12.6.11 */
+extern double __cdecl logb (double);
+extern float __cdecl logbf (float);
+extern long double __cdecl logbl (long double);
+
+/* Inline versions.  GCC-4.0+ can do a better fast-math optimization
+   with __builtins. */ 
+#if !(__MINGW_GNUC_PREREQ (4, 0) && defined __FAST_MATH__ )
+__CRT_INLINE double __cdecl logb (double x)
+{
+  double res;
+  __asm__ ("fxtract\n\t"
+       "fstp	%%st" : "=t" (res) : "0" (x));
+  return res;
+}
+
+__CRT_INLINE float __cdecl logbf (float x)
+{
+  float res;
+  __asm__ ("fxtract\n\t"
+       "fstp	%%st" : "=t" (res) : "0" (x));
+  return res;
+}
+
+__CRT_INLINE long double __cdecl logbl (long double x)
+{
+  long double res;
+  __asm__ ("fxtract\n\t"
+       "fstp	%%st" : "=t" (res) : "0" (x));
+  return res;
+}
+#endif /* !defined __FAST_MATH__ || !__MINGW_GNUC_PREREQ (4, 0) */
+
+/* 7.12.6.12  Double in C89 */
+extern float __cdecl modff (float, float*);
+extern long double __cdecl modfl (long double, long double*);
+
+/* 7.12.6.13 */
+extern double __cdecl scalbn (double, int);
+extern float __cdecl scalbnf (float, int);
+extern long double __cdecl scalbnl (long double, int);
+
+extern double __cdecl scalbln (double, long);
+extern float __cdecl scalblnf (float, long);
+extern long double __cdecl scalblnl (long double, long);
+
+/* 7.12.7.1 */
+/* Implementations adapted from Cephes versions */ 
+extern double __cdecl cbrt (double);
+extern float __cdecl cbrtf (float);
+extern long double __cdecl cbrtl (long double);
+
+/* 7.12.7.2 The fabs functions: Double in C89 */
+extern  float __cdecl fabsf (float x);
+extern long double __cdecl fabsl (long double x);
+
+/* 7.12.7.3  */
+extern double __cdecl hypot (double, double); /* in libmoldname.a */
+__CRT_INLINE float __cdecl hypotf (float x, float y)
+  { return (float) hypot (x, y);}
+extern long double __cdecl hypotl (long double, long double);
+
+/* 7.12.7.4 The pow functions. Double in C89 */
+__CRT_INLINE float __cdecl powf (float x, float y)
+  {return (float) pow (x, y);}
+extern long double __cdecl powl (long double, long double);
+
+/* 7.12.7.5 The sqrt functions. Double in C89. */
+extern float __cdecl sqrtf (float);
+extern long double __cdecl sqrtl (long double);
+
+/* 7.12.8.1 The erf functions  */
+extern double __cdecl erf (double);
+extern float __cdecl erff (float);
+extern long double __cdecl erfl (long double);
+
+/* 7.12.8.2 The erfc functions  */
+extern double __cdecl erfc (double);
+extern float __cdecl erfcf (float);
+extern long double __cdecl erfcl (long double);
+
+/* 7.12.8.3 The lgamma functions */
+extern double __cdecl lgamma (double);
+extern float __cdecl lgammaf (float);
+extern long double __cdecl lgammal (long double);
+
+/* 7.12.8.4 The tgamma functions */
+extern double __cdecl tgamma (double);
+extern float __cdecl tgammaf (float);
+extern long double __cdecl tgammal (long double);
+
+/* 7.12.9.1 Double in C89 */
+extern float __cdecl ceilf (float);
+extern long double __cdecl ceill (long double);
+
+/* 7.12.9.2 Double in C89 */
+extern float __cdecl floorf (float);
+extern long double __cdecl floorl (long double);
+
+/* 7.12.9.3 */
+extern double __cdecl nearbyint ( double);
+extern float __cdecl nearbyintf (float);
+extern long double __cdecl nearbyintl (long double);
+
+/* 7.12.9.4 */
+/* round, using fpu control word settings */
+extern double __cdecl rint (double);
+extern float __cdecl rintf (float);
+extern long double __cdecl rintl (long double);
+
+/* 7.12.9.5 */
+extern long __cdecl lrint (double);
+extern long __cdecl lrintf (float);
+extern long __cdecl lrintl (long double);
+
+extern long long __cdecl llrint (double);
+extern long long __cdecl llrintf (float);
+extern long long __cdecl llrintl (long double);
+
+/* Inline versions of above. 
+   GCC 4.0+ can do a better fast-math job with __builtins. */
+#if !(__MINGW_GNUC_PREREQ (4, 0) && defined __FAST_MATH__ )
+__CRT_INLINE double __cdecl rint (double x)
+{
+  double retval;
+  __asm__ ("frndint;": "=t" (retval) : "0" (x));
+  return retval;
+}
+
+__CRT_INLINE float __cdecl rintf (float x)
+{
+  float retval;
+  __asm__ ("frndint;" : "=t" (retval) : "0" (x) );
+  return retval;
+}
+
+__CRT_INLINE long double __cdecl rintl (long double x)
+{
+  long double retval;
+  __asm__ ("frndint;" : "=t" (retval) : "0" (x) );
+  return retval;
+}
+
+__CRT_INLINE long __cdecl lrint (double x) 
+{
+  long retval;  
+  __asm__ __volatile__
+    ("fistpl %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+
+__CRT_INLINE long __cdecl lrintf (float x) 
+{
+  long retval;
+  __asm__ __volatile__
+    ("fistpl %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+
+__CRT_INLINE long __cdecl lrintl (long double x) 
+{
+  long retval;
+  __asm__ __volatile__
+    ("fistpl %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+
+__CRT_INLINE long long __cdecl llrint (double x)
+{
+  long long retval;
+  __asm__ __volatile__
+    ("fistpll %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+
+__CRT_INLINE long long __cdecl llrintf (float x)
+{
+  long long retval;
+  __asm__ __volatile__
+    ("fistpll %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+
+__CRT_INLINE long long __cdecl llrintl (long double x) 
+{
+  long long retval;
+  __asm__ __volatile__
+    ("fistpll %0"  : "=m" (retval) : "t" (x) : "st");
+  return retval;
+}
+#endif /* !__FAST_MATH__ || !__MINGW_GNUC_PREREQ (4,0)  */
+
+/* 7.12.9.6 */
+/* round away from zero, regardless of fpu control word settings */
+extern double __cdecl round (double);
+extern float __cdecl roundf (float);
+extern long double __cdecl roundl (long double);
+
+/* 7.12.9.7  */
+extern long __cdecl lround (double);
+extern long __cdecl lroundf (float);
+extern long __cdecl lroundl (long double);
+
+extern long long __cdecl llround (double);
+extern long long __cdecl llroundf (float);
+extern long long __cdecl llroundl (long double);
+
+/* 7.12.9.8 */
+/* round towards zero, regardless of fpu control word settings */
+extern double __cdecl trunc (double);
+extern float __cdecl truncf (float);
+extern long double __cdecl truncl (long double);
+
+/* 7.12.10.1 Double in C89 */
+extern float __cdecl fmodf (float, float);
+extern long double __cdecl fmodl (long double, long double);
+
+/* 7.12.10.2 */ 
+extern double __cdecl remainder (double, double);
+extern float __cdecl remainderf (float, float);
+extern long double __cdecl remainderl (long double, long double);
+
+/* 7.12.10.3 */
+extern double __cdecl remquo(double, double, int *);
+extern float __cdecl remquof(float, float, int *);
+extern long double __cdecl remquol(long double, long double, int *);
+
+/* 7.12.11.1 */
+extern double __cdecl copysign (double, double); /* in libmoldname.a */
+extern float __cdecl copysignf (float, float);
+extern long double __cdecl copysignl (long double, long double);
+
+/* 7.12.11.2 Return a NaN */
+extern double __cdecl nan(const char *tagp);
+extern float __cdecl nanf(const char *tagp);
+extern long double __cdecl nanl(const char *tagp);
+
+#ifndef __STRICT_ANSI__
+#define _nan() nan("")
+#define _nanf() nanf("")
+#define _nanl() nanl("")
+#endif
+
+/* 7.12.11.3 */
+extern double __cdecl nextafter (double, double); /* in libmoldname.a */
+extern float __cdecl nextafterf (float, float);
+extern long double __cdecl nextafterl (long double, long double);
+
+/* 7.12.11.4 The nexttoward functions */
+extern double __cdecl nexttoward (double,  long double);
+extern float __cdecl nexttowardf (float,  long double);
+extern long double __cdecl nexttowardl (long double, long double);
+
+/* 7.12.12.1 */
+/*  x > y ? (x - y) : 0.0  */
+extern double __cdecl fdim (double x, double y);
+extern float __cdecl fdimf (float x, float y);
+extern long double __cdecl fdiml (long double x, long double y);
+
+/* fmax and fmin.
+   NaN arguments are treated as missing data: if one argument is a NaN
+   and the other numeric, then these functions choose the numeric
+   value. */
+
+/* 7.12.12.2 */
+extern double __cdecl fmax  (double, double);
+extern float __cdecl fmaxf (float, float);
+extern long double __cdecl fmaxl (long double, long double);
+
+/* 7.12.12.3 */
+extern double __cdecl fmin (double, double);
+extern float __cdecl fminf (float, float);
+extern long double __cdecl fminl (long double, long double);
+
+/* 7.12.13.1 */
+/* return x * y + z as a ternary op */ 
+extern double __cdecl fma (double, double, double);
+extern float __cdecl fmaf (float, float, float);
+extern long double __cdecl fmal (long double, long double, long double);
+
+
+/* 7.12.14 */
+/* 
+ *  With these functions, comparisons involving quiet NaNs set the FP
+ *  condition code to "unordered".  The IEEE floating-point spec
+ *  dictates that the result of floating-point comparisons should be
+ *  false whenever a NaN is involved, with the exception of the != op, 
+ *  which always returns true: yes, (NaN != NaN) is true).
+ */
+
+#if __GNUC__ >= 3
+
+#define isgreater(x, y) __builtin_isgreater(x, y)
+#define isgreaterequal(x, y) __builtin_isgreaterequal(x, y)
+#define isless(x, y) __builtin_isless(x, y)
+#define islessequal(x, y) __builtin_islessequal(x, y)
+#define islessgreater(x, y) __builtin_islessgreater(x, y)
+#define isunordered(x, y) __builtin_isunordered(x, y)
+
+#else
+/*  helper  */
+__CRT_INLINE int  __cdecl
+__fp_unordered_compare (long double x, long double y){
+  unsigned short retval;
+  __asm__ ("fucom %%st(1);"
+	   "fnstsw;": "=a" (retval) : "t" (x), "u" (y));
+  return retval;
+}
+
+#define isgreater(x, y) ((__fp_unordered_compare(x, y) \
+			   & 0x4500) == 0)
+#define isless(x, y) ((__fp_unordered_compare (y, x) \
+                       & 0x4500) == 0)
+#define isgreaterequal(x, y) ((__fp_unordered_compare (x, y) \
+                               & FP_INFINITE) == 0)
+#define islessequal(x, y) ((__fp_unordered_compare(y, x) \
+			    & FP_INFINITE) == 0)
+#define islessgreater(x, y) ((__fp_unordered_compare(x, y) \
+			      & FP_SUBNORMAL) == 0)
+#define isunordered(x, y) ((__fp_unordered_compare(x, y) \
+			    & 0x4500) == 0x4500)
+
+#endif
+
+
+#endif /* __STDC_VERSION__ >= 199901L */
+#endif /* __NO_ISOCEXT */
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif	/* Not RC_INVOKED */
+
+
+#endif	/* Not _MATH_H_ */