408 lines
14 KiB
C
408 lines
14 KiB
C
/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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/*
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* Originally based on fdlibm.h 5.1 via FreeBSD.
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*/
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#pragma once
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#include <sys/cdefs.h>
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#include <limits.h>
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__BEGIN_DECLS
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/* C11. */
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typedef double __double_t;
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typedef __double_t double_t;
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typedef float __float_t;
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typedef __float_t float_t;
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#define HUGE_VAL __builtin_huge_val()
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#define HUGE_VALF __builtin_huge_valf()
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#define HUGE_VALL __builtin_huge_vall()
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#define INFINITY __builtin_inff()
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#define NAN __builtin_nanf("")
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#define FP_INFINITE 0x01
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#define FP_NAN 0x02
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#define FP_NORMAL 0x04
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#define FP_SUBNORMAL 0x08
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#define FP_ZERO 0x10
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#if defined(__FP_FAST_FMA)
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#define FP_FAST_FMA 1
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#endif
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#if defined(__FP_FAST_FMAF)
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#define FP_FAST_FMAF 1
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#endif
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#if defined(__FP_FAST_FMAL)
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#define FP_FAST_FMAL 1
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#endif
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#define FP_ILOGB0 (-INT_MAX)
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#define FP_ILOGBNAN INT_MAX
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#define MATH_ERRNO 1
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#define MATH_ERREXCEPT 2
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#define math_errhandling MATH_ERREXCEPT
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#define fpclassify(x) __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)
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#define isfinite(x) __builtin_isfinite(x)
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#define isinf(x) __builtin_isinf(x)
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#define isnan(x) __builtin_isnan(x)
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#define isnormal(x) __builtin_isnormal(x)
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#define signbit(x) \
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((sizeof(x) == sizeof(float)) ? __builtin_signbitf(x) \
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: (sizeof(x) == sizeof(double)) ? __builtin_signbit(x) \
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: __builtin_signbitl(x))
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double acos(double __x);
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float acosf(float __x);
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long double acosl(long double __x) __RENAME_LDBL(acos, 3, 21);
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double asin(double __x);
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float asinf(float __x);
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long double asinl(long double __x) __RENAME_LDBL(asin, 3, 21);
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double atan(double __x);
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float atanf(float __x);
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long double atanl(long double __x) __RENAME_LDBL(atan, 3, 21);
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double atan2(double __y, double __x);
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float atan2f(float __y, float __x);
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long double atan2l(long double __y, long double __x) __RENAME_LDBL(atan2, 3, 21);
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double cos(double __x);
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float cosf(float __x);
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long double cosl(long double __x) __RENAME_LDBL(cos, 3, 21);
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double sin(double __x);
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float sinf(float __x);
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long double sinl(long double __x) __RENAME_LDBL(sin, 3, 21);
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double tan(double __x);
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float tanf(float __x);
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long double tanl(long double __x) __RENAME_LDBL(tan, 3, 21);
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double acosh(double __x);
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float acoshf(float __x);
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long double acoshl(long double __x) __RENAME_LDBL(acosh, 3, 21);
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double asinh(double __x);
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float asinhf(float __x);
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long double asinhl(long double __x) __RENAME_LDBL(asinh, 3, 21);
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double atanh(double __x);
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float atanhf(float __x);
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long double atanhl(long double __x) __RENAME_LDBL(atanh, 3, 21);
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double cosh(double __x);
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float coshf(float __x);
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long double coshl(long double __x) __RENAME_LDBL(cosh, 3, 21);
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double sinh(double __x);
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float sinhf(float __x);
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long double sinhl(long double __x) __RENAME_LDBL(sinh, 3, 21);
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double tanh(double __x);
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float tanhf(float __x);
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long double tanhl(long double __x) __RENAME_LDBL(tanh, 3, 21);
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double exp(double __x);
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float expf(float __x);
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long double expl(long double __x) __RENAME_LDBL(exp, 3, 21);
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double exp2(double __x);
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float exp2f(float __x);
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long double exp2l(long double __x) __RENAME_LDBL(exp2, 3, 21);
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double expm1(double __x);
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float expm1f(float __x);
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long double expm1l(long double __x) __RENAME_LDBL(expm1, 3, 21);
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double frexp(double __x, int* _Nonnull __exponent);
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float frexpf(float __x, int* _Nonnull __exponent);
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long double frexpl(long double __x, int* _Nonnull __exponent) __RENAME_LDBL(frexp, 3, 21);
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int ilogb(double __x) __attribute_const__;
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int ilogbf(float __x) __attribute_const__;
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int ilogbl(long double __x) __RENAME_LDBL(ilogb, 3, 3) __attribute_const__;
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double ldexp(double __x, int __exponent);
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float ldexpf(float __x, int __exponent);
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long double ldexpl(long double __x, int __exponent) __RENAME_LDBL(ldexp, 3, 3);
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double log(double __x);
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float logf(float __x);
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long double logl(long double __x) __RENAME_LDBL(log, 3, 21);
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double log10(double __x);
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float log10f(float __x);
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long double log10l(long double __x) __RENAME_LDBL(log10, 3, 21);
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double log1p(double __x);
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float log1pf(float __x);
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long double log1pl(long double __x) __RENAME_LDBL(log1p, 3, 21);
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double log2(double __x) __INTRODUCED_IN(18);
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float log2f(float __x) __INTRODUCED_IN(18);
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long double log2l(long double __x) __RENAME_LDBL(log2, 18, 18);
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double logb(double __x);
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float logbf(float __x);
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long double logbl(long double __x) __RENAME_LDBL(logb, 3, 18);
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double modf(double __x, double* _Nonnull __integral_part);
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float modff(float __x, float* _Nonnull __integral_part);
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long double modfl(long double __x, long double* _Nonnull __integral_part) __RENAME_LDBL(modf, 3, 21);
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double scalbn(double __x, int __exponent);
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float scalbnf(float __x, int __exponent);
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long double scalbnl(long double __x, int __exponent) __RENAME_LDBL(scalbn, 3, 3);
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/* TODO: once the NDK only supports >= 18, use __RENAME_LDBL here too. */
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double scalbln(double __x, long __exponent) __INTRODUCED_IN_X86_NO_GUARD_FOR_NDK(18);
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float scalblnf(float __x, long __exponent) __INTRODUCED_IN_X86_NO_GUARD_FOR_NDK(18);
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long double scalblnl(long double __x, long __exponent) __INTRODUCED_IN_X86_NO_GUARD_FOR_NDK(18);
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double cbrt(double __x);
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float cbrtf(float __x);
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long double cbrtl(long double __x) __RENAME_LDBL(cbrt, 3, 21);
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double fabs(double __x) __attribute_const__;
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float fabsf(float __x) __attribute_const__;
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long double fabsl(long double __x) __RENAME_LDBL(fabs, 3, 3) __attribute_const__;
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double hypot(double __x, double __y);
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float hypotf(float __x, float __y);
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long double hypotl(long double __x, long double __y) __RENAME_LDBL(hypot, 3, 21);
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double pow(double __x, double __y);
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float powf(float __x, float __y);
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long double powl(long double __x, long double __y) __RENAME_LDBL(pow, 3, 21);
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double sqrt(double __x);
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float sqrtf(float __x);
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long double sqrtl(long double __x) __RENAME_LDBL(sqrt, 3, 21);
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double erf(double __x);
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float erff(float __x);
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long double erfl(long double __x) __RENAME_LDBL(erf, 3, 21);
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double erfc(double __x);
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float erfcf(float __x);
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long double erfcl(long double __x) __RENAME_LDBL(erfc, 3, 21);
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double lgamma(double __x);
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float lgammaf(float __x);
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long double lgammal(long double __x) __RENAME_LDBL(lgamma, 3, 21);
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double tgamma(double __x);
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float tgammaf(float __x);
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long double tgammal(long double __x) __RENAME_LDBL(tgamma, 3, 21);
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double ceil(double __x);
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float ceilf(float __x);
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long double ceill(long double __x) __RENAME_LDBL(ceil, 3, 3);
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double floor(double __x);
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float floorf(float __x);
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long double floorl(long double __x) __RENAME_LDBL(floor, 3, 3);
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double nearbyint(double __x);
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float nearbyintf(float __x);
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long double nearbyintl(long double __x) __RENAME_LDBL(nearbyint, 3, 21);
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double rint(double __x);
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float rintf(float __x);
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long double rintl(long double __x) __RENAME_LDBL(rint, 3, 21);
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long lrint(double __x);
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long lrintf(float __x);
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long lrintl(long double __x) __RENAME_LDBL(lrint, 3, 21);
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long long llrint(double __x);
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long long llrintf(float __x);
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long long llrintl(long double __x) __RENAME_LDBL(llrint, 3, 21);
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double round(double __x);
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float roundf(float __x);
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long double roundl(long double __x) __RENAME_LDBL(roundl, 3, 3);
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long lround(double __x);
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long lroundf(float __x);
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long lroundl(long double __x) __RENAME_LDBL(lround, 3, 3);
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long long llround(double __x);
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long long llroundf(float __x);
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long long llroundl(long double __x) __RENAME_LDBL(llround, 3, 3);
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double trunc(double __x);
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float truncf(float __x);
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long double truncl(long double __x) __RENAME_LDBL(trunc, 3, 3);
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double fmod(double __x, double __y);
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float fmodf(float __x, float __y);
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long double fmodl(long double __x, long double __y) __RENAME_LDBL(fmod, 3, 21);
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double remainder(double __x, double __y);
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float remainderf(float __x, float __y);
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long double remainderl(long double __x, long double __y) __RENAME_LDBL(remainder, 3, 21);
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double remquo(double __x, double __y, int* _Nonnull __quotient_bits);
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float remquof(float __x, float __y, int* _Nonnull __quotient_bits);
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long double remquol(long double __x, long double __y, int* _Nonnull __quotient_bits) __RENAME_LDBL(remquo, 3, 21);
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double copysign(double __value, double __sign) __attribute_const__;
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float copysignf(float __value, float __sign) __attribute_const__;
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long double copysignl(long double __value, long double __sign) __RENAME_LDBL(copysign, 3, 3) __attribute_const__;
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double nan(const char* _Nonnull __kind) __attribute_const__;
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float nanf(const char* _Nonnull __kind) __attribute_const__;
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long double nanl(const char* _Nonnull __kind) __RENAME_LDBL(nan, 13, 13) __attribute_const__;
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double nextafter(double __x, double __y);
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float nextafterf(float __x, float __y);
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long double nextafterl(long double __x, long double __y) __RENAME_LDBL_NO_GUARD_FOR_NDK(nextafter, 3, 21);
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double nexttoward(double __x, long double __y) __INTRODUCED_IN_NO_GUARD_FOR_NDK(18);
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float nexttowardf(float __x, long double __y);
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long double nexttowardl(long double __x, long double __y) __RENAME_LDBL_NO_GUARD_FOR_NDK(nexttoward, 18, 18);
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double fdim(double __x, double __y);
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float fdimf(float __x, float __y);
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long double fdiml(long double __x, long double __y) __RENAME_LDBL(fdim, 3, 3);
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double fmax(double __x, double __y) __attribute_const__;
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float fmaxf(float __x, float __y) __attribute_const__;
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long double fmaxl(long double __x, long double __y) __RENAME_LDBL(fmax, 3, 3) __attribute_const__;
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double fmin(double __x, double __y) __attribute_const__;
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float fminf(float __x, float __y) __attribute_const__;
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long double fminl(long double __x, long double __y) __RENAME_LDBL(fmin, 3, 3) __attribute_const__;
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double fma(double __x, double __y, double __z);
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float fmaf(float __x, float __y, float __z);
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long double fmal(long double __x, long double __y, long double __z) __RENAME_LDBL_NO_GUARD_FOR_NDK(fma, 3, 21);
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#define isgreater(x, y) __builtin_isgreater((x), (y))
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#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y))
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#define isless(x, y) __builtin_isless((x), (y))
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#define islessequal(x, y) __builtin_islessequal((x), (y))
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#define islessgreater(x, y) __builtin_islessgreater((x), (y))
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#define isunordered(x, y) __builtin_isunordered((x), (y))
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/*
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* https://code.google.com/p/android/issues/detail?id=271629
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* To be fully compliant with C++, we need to not define these (C doesn't
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* specify them either). Exposing these means that isinf and isnan will have a
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* return type of int in C++ rather than bool like they're supposed to be.
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*
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* GNU libstdc++ 4.9 isn't able to handle a standard compliant C library. Its
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* <cmath> will `#undef isnan` from math.h and only adds the function overloads
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* to the std namespace, making it impossible to use both <cmath> (which gets
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* included by a lot of other standard headers) and ::isnan.
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*/
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int (isinf)(double __x) __attribute_const__ __INTRODUCED_IN(21);
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int (isnan)(double __x) __attribute_const__;
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/* POSIX extensions. */
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extern int signgam;
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double j0(double __x);
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double j1(double __x);
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double jn(int __n, double __x);
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double y0(double __x);
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double y1(double __x);
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double yn(int __n, double __x);
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#define M_E 2.7182818284590452354 /* e */
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#define M_LOG2E 1.4426950408889634074 /* log 2e */
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#define M_LOG10E 0.43429448190325182765 /* log 10e */
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#define M_LN2 0.69314718055994530942 /* log e2 */
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#define M_LN10 2.30258509299404568402 /* log e10 */
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#define M_PI 3.14159265358979323846 /* pi */
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#define M_PI_2 1.57079632679489661923 /* pi/2 */
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#define M_PI_4 0.78539816339744830962 /* pi/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/pi */
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#define M_2_PI 0.63661977236758134308 /* 2/pi */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
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#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
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#define MAXFLOAT ((float)3.40282346638528860e+38)
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/* BSD extensions. */
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#if defined(__USE_BSD)
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#define HUGE MAXFLOAT
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#endif
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/* Extensions in both BSD and GNU. */
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#if defined(__USE_BSD) || defined(__USE_GNU)
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double gamma(double __x);
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double scalb(double __x, double __exponent);
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double drem(double __x, double __y);
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int finite(double __x) __attribute_const__;
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int isnanf(float __x) __attribute_const__;
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double gamma_r(double __x, int* _Nonnull __sign);
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double lgamma_r(double __x, int* _Nonnull __sign);
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double significand(double __x);
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long double lgammal_r(long double __x, int* _Nonnull __sign) __INTRODUCED_IN(23);
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long double significandl(long double __x) __INTRODUCED_IN(21);
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float dremf(float __x, float __y);
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int finitef(float __x) __attribute_const__;
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float gammaf(float __x);
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float j0f(float __x);
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float j1f(float __x);
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float jnf(int __n, float __x);
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float scalbf(float __x, float __exponent);
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float y0f(float __x);
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float y1f(float __x);
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float ynf(int __n, float __x);
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float gammaf_r(float __x, int* _Nonnull __sign);
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float lgammaf_r(float __x, int* _Nonnull __sign);
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float significandf(float __x);
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void sincos(double __x, double* _Nonnull __sin, double* _Nonnull __cos);
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void sincosf(float __x, float* _Nonnull __sin, float* _Nonnull __cos);
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void sincosl(long double __x, long double* _Nonnull __sin, long double* _Nonnull __cos);
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#endif
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/* GNU extensions. */
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#if defined(__USE_GNU)
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#define M_El 2.718281828459045235360287471352662498L /* e */
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#define M_LOG2El 1.442695040888963407359924681001892137L /* log 2e */
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#define M_LOG10El 0.434294481903251827651128918916605082L /* log 10e */
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#define M_LN2l 0.693147180559945309417232121458176568L /* log e2 */
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#define M_LN10l 2.302585092994045684017991454684364208L /* log e10 */
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#define M_PIl 3.141592653589793238462643383279502884L /* pi */
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#define M_PI_2l 1.570796326794896619231321691639751442L /* pi/2 */
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#define M_PI_4l 0.785398163397448309615660845819875721L /* pi/4 */
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#define M_1_PIl 0.318309886183790671537767526745028724L /* 1/pi */
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#define M_2_PIl 0.636619772367581343075535053490057448L /* 2/pi */
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#define M_2_SQRTPIl 1.128379167095512573896158903121545172L /* 2/sqrt(pi) */
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#define M_SQRT2l 1.414213562373095048801688724209698079L /* sqrt(2) */
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#define M_SQRT1_2l 0.707106781186547524400844362104849039L /* 1/sqrt(2) */
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#endif
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__END_DECLS
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