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authorEric Andersen <andersen@codepoet.org>2001-11-22 14:04:29 +0000
committerEric Andersen <andersen@codepoet.org>2001-11-22 14:04:29 +0000
commit7ce331c01ce6eb7b3f5c715a38a24359da9c6ee2 (patch)
tree3a7e8476e868ae15f4da1b7ce26b2db6f434468c /include/math.h
parentc117dd5fb183afb1a4790a6f6110d88704be6bf8 (diff)
Totally rework the math library, this time based on the MacOs X
math library (which is itself based on the math lib from FreeBSD). -Erik
Diffstat (limited to 'include/math.h')
-rw-r--r--include/math.h719
1 files changed, 257 insertions, 462 deletions
diff --git a/include/math.h b/include/math.h
index 955e66a83..8a2e86c2f 100644
--- a/include/math.h
+++ b/include/math.h
@@ -1,212 +1,121 @@
-/* mconf.h
- * <math.h>
- * ISO/IEC 9899:1999 -- Programming Languages C: 7.12 Mathematics
- * Derived from the Cephes Math Library Release 2.3
- * Copyright 1984, 1987, 1989, 1995 by Stephen L. Moshier
- *
- *
- * DESCRIPTION:
- *
- * The file also includes a conditional assembly definition
- * for the type of computer arithmetic (IEEE, DEC, Motorola
- * IEEE, or UNKnown).
- *
- * For Digital Equipment PDP-11 and VAX computers, certain
- * IBM systems, and others that use numbers with a 56-bit
- * significand, the symbol DEC should be defined. In this
- * mode, most floating point constants are given as arrays
- * of octal integers to eliminate decimal to binary conversion
- * errors that might be introduced by the compiler.
- *
- * For little-endian computers, such as IBM PC, that follow the
- * IEEE Standard for Binary Floating Point Arithmetic (ANSI/IEEE
- * Std 754-1985), the symbol IBMPC should be defined. These
- * numbers have 53-bit significands. In this mode, constants
- * are provided as arrays of hexadecimal 16 bit integers.
- *
- * Big-endian IEEE format is denoted MIEEE. On some RISC
- * systems such as Sun SPARC, double precision constants
- * must be stored on 8-byte address boundaries. Since integer
- * arrays may be aligned differently, the MIEEE configuration
- * may fail on such machines.
- *
- * To accommodate other types of computer arithmetic, all
- * constants are also provided in a normal decimal radix
- * which one can hope are correctly converted to a suitable
- * format by the available C language compiler. To invoke
- * this mode, define the symbol UNK.
- *
- * An important difference among these modes is a predefined
- * set of machine arithmetic constants for each. The numbers
- * MACHEP (the machine roundoff error), MAXNUM (largest number
- * represented), and several other parameters are preset by
- * the configuration symbol. Check the file const.c to
- * ensure that these values are correct for your computer.
- *
- * Configurations NANS, INFINITIES, MINUSZERO, and DENORMAL
- * may fail on many systems. Verify that they are supposed
- * to work on your computer.
+/* Declarations for math functions.
+ Copyright (C) 1991,92,93,95,96,97,98,99,2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/*
+ * ISO C99 Standard: 7.12 Mathematics <math.h>
*/
-
#ifndef _MATH_H
#define _MATH_H 1
#include <features.h>
-#include <bits/huge_val.h>
-
-/* Type of computer arithmetic */
-
-/* PDP-11, Pro350, VAX:
- */
-/* #define DEC 1 */
-
-/* Intel IEEE, low order words come first:
- */
-/* #define IBMPC 1 */
-
-/* Motorola IEEE, high order words come first
- * (Sun 680x0 workstation):
- */
-/* #define MIEEE 1 */
-
-/* UNKnown arithmetic, invokes coefficients given in
- * normal decimal format. Beware of range boundary
- * problems (MACHEP, MAXLOG, etc. in const.c) and
- * roundoff problems in pow.c:
- * (Sun SPARCstation)
- */
-#define UNK 1
+__BEGIN_DECLS
-/* Define if the `long double' type works. */
-#define HAVE_LONG_DOUBLE 1
-
-/* Define as the return type of signal handlers (int or void). */
-#define RETSIGTYPE void
-
-/* Define if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define if your processor stores words with the most significant
- byte first (like Motorola and SPARC, unlike Intel and VAX). */
-/* #undef WORDS_BIGENDIAN */
-
-/* Define if floating point words are bigendian. */
-/* #undef FLOAT_WORDS_BIGENDIAN */
-
-/* The number of bytes in a int. */
-#define SIZEOF_INT 4
-
-/* Define if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-
-/* Define this `volatile' if your compiler thinks
- * that floating point arithmetic obeys the associative
- * and distributive laws. It will defeat some optimizations
- * (but probably not enough of them).
- *
- * #define VOLATILE volatile
- */
-#define VOLATILE
-
-/* For 12-byte long doubles on an i386, pad a 16-bit short 0
- * to the end of real constants initialized by integer arrays.
- *
- * #define XPD 0,
- *
- * Otherwise, the type is 10 bytes long and XPD should be
- * defined blank (e.g., Microsoft C).
- *
- * #define XPD
- */
-#define XPD 0,
-
-/* Define to support tiny denormal numbers, else undefine. */
-#define DENORMAL 1
-
-/* Define to ask for infinity support, else undefine. */
-#define INFINITIES 1
-
-/* Define to ask for support of numbers that are Not-a-Number,
- else undefine. This may automatically define INFINITIES in some files. */
-#define NANS 1
-
-/* Define to distinguish between -0.0 and +0.0. */
-#define MINUSZERO 1
-
-/* Define 1 for ANSI C atan2() function
- and ANSI prototypes for float arguments.
- See atan.c and clog.c. */
-#define ANSIC 1
-#define ANSIPROT 1
-
-
-/* Constant definitions for math error conditions */
-
-#define DOMAIN 1 /* argument domain error */
-#define SING 2 /* argument singularity */
-#define OVERFLOW 3 /* overflow range error */
-#define UNDERFLOW 4 /* underflow range error */
-#define TLOSS 5 /* total loss of precision */
-#define PLOSS 6 /* partial loss of precision */
-
-#define EDOM 33
-#define ERANGE 34
+/* Get machine-dependent HUGE_VAL value (returned on overflow).
+ On all IEEE754 machines, this is +Infinity. */
+#include <bits/huge_val.h>
-/* Complex numeral. */
-#ifdef __UCLIBC_HAS_LIBM_DOUBLE__
-typedef struct
- {
- double r;
- double i;
- } cmplx;
+/* Get machine-dependent NAN value (returned for some domain errors). */
+#ifdef __USE_ISOC99
+# include <bits/nan.h>
#endif
+/* Get general and ISO C99 specific information. */
+#include <bits/mathdef.h>
-#ifdef __UCLIBC_HAS_LIBM_FLOAT__
-typedef struct
- {
- float r;
- float i;
- } cmplxf;
-#endif
-#ifdef __UCLIBC_HAS_LIBM_LONG_DOUBLE__
-/* Long double complex numeral. */
-typedef struct
- {
- long double r;
- long double i;
- } cmplxl;
-#endif
+/* The file <bits/mathcalls.h> contains the prototypes for all the
+ actual math functions. These macros are used for those prototypes,
+ so we can easily declare each function as both `name' and `__name',
+ and can declare the float versions `namef' and `__namef'. */
+#define __MATHCALL(function,suffix, args) \
+ __MATHDECL (_Mdouble_,function,suffix, args)
+#define __MATHDECL(type, function,suffix, args) \
+ __MATHDECL_1(type, function,suffix, args); \
+ __MATHDECL_1(type, __CONCAT(__,function),suffix, args)
+#define __MATHCALLX(function,suffix, args, attrib) \
+ __MATHDECLX (_Mdouble_,function,suffix, args, attrib)
+#define __MATHDECLX(type, function,suffix, args, attrib) \
+ __MATHDECL_1(type, function,suffix, args) __attribute__ (attrib); \
+ __MATHDECL_1(type, __CONCAT(__,function),suffix, args) __attribute__ (attrib)
+#define __MATHDECL_1(type, function,suffix, args) \
+ extern type __MATH_PRECNAME(function,suffix) args __THROW
+#define _Mdouble_ double
+#define __MATH_PRECNAME(name,r) __CONCAT(name,r)
+#include <bits/mathcalls.h>
+#undef _Mdouble_
+#undef __MATH_PRECNAME
+
+#if defined __USE_MISC || defined __USE_ISOC99
-/* Variable for error reporting. See mtherr.c. */
-__BEGIN_DECLS
-extern int mtherr(char *name, int code);
-extern int merror;
-__END_DECLS
+/* Include the file of declarations again, this time using `float'
+ instead of `double' and appending f to each function name. */
-/* If you define UNK, then be sure to set BIGENDIAN properly. */
-#include <endian.h>
-#if __BYTE_ORDER == __BIG_ENDIAN
-# define BIGENDIAN 1
-#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
-# define BIGENDIAN 0
+# ifndef _Mfloat_
+# define _Mfloat_ float
+# endif
+# define _Mdouble_ _Mfloat_
+# ifdef __STDC__
+# define __MATH_PRECNAME(name,r) name##f##r
+# else
+# define __MATH_PRECNAME(name,r) name/**/f/**/r
+# endif
+# include <bits/mathcalls.h>
+# undef _Mdouble_
+# undef __MATH_PRECNAME
+
+# if (__STDC__ - 0 || __GNUC__ - 0) && !defined __NO_LONG_DOUBLE_MATH
+/* Include the file of declarations again, this time using `long double'
+ instead of `double' and appending l to each function name. */
+
+# ifndef _Mlong_double_
+# define _Mlong_double_ long double
+# endif
+# define _Mdouble_ _Mlong_double_
+# ifdef __STDC__
+# define __MATH_PRECNAME(name,r) name##l##r
+# else
+# define __MATH_PRECNAME(name,r) name/**/l/**/r
+# endif
+# include <bits/mathcalls.h>
+# undef _Mdouble_
+# undef __MATH_PRECNAME
+
+# endif /* __STDC__ || __GNUC__ */
+
+#endif /* Use misc or ISO C99. */
+#undef __MATHDECL_1
+#undef __MATHDECL
+#undef __MATHCALL
+
+
+#if defined __USE_MISC || defined __USE_XOPEN
+/* This variable is used by `gamma' and `lgamma'. */
+extern int signgam;
#endif
-
-#define __USE_ISOC9X
-/* Get general and ISO C 9X specific information. */
-#include <bits/mathdef.h>
-#undef INFINITY
-#undef DECIMAL_DIG
-#undef FP_ILOGB0
-#undef FP_ILOGBNAN
+/* ISO C99 defines some generic macros which work on any data type. */
+#if __USE_ISOC99
/* Get the architecture specific values describing the floating-point
evaluation. The following symbols will get defined:
@@ -257,47 +166,139 @@ enum
};
/* Return number of classification appropriate for X. */
-#ifdef __UCLIBC_HAS_LIBM_DOUBLE__
-# define fpclassify(x) \
- (sizeof (x) == sizeof (float) ? \
- __fpclassifyf (x) \
- : sizeof (x) == sizeof (double) ? \
- __fpclassify (x) : __fpclassifyl (x))
-#else
+# ifdef __NO_LONG_DOUBLE_MATH
# define fpclassify(x) \
(sizeof (x) == sizeof (float) ? __fpclassifyf (x) : __fpclassify (x))
-#endif
-
-__BEGIN_DECLS
+# else
+# define fpclassify(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __fpclassifyf (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __fpclassify (x) : __fpclassifyl (x))
+# endif
-#ifdef __UCLIBC_HAS_LIBM_DOUBLE__
/* Return nonzero value if sign of X is negative. */
-extern int signbit(double x);
+# ifdef __NO_LONG_DOUBLE_MATH
+# define signbit(x) \
+ (sizeof (x) == sizeof (float) ? __signbitf (x) : __signbit (x))
+# else
+# define signbit(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __signbitf (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __signbit (x) : __signbitl (x))
+# endif
+
/* Return nonzero value if X is not +-Inf or NaN. */
-extern int isfinite(double x);
+# ifdef __NO_LONG_DOUBLE_MATH
+# define isfinite(x) \
+ (sizeof (x) == sizeof (float) ? __finitef (x) : __finite (x))
+# else
+# define isfinite(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __finitef (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __finite (x) : __finitel (x))
+# endif
+
/* Return nonzero value if X is neither zero, subnormal, Inf, nor NaN. */
# define isnormal(x) (fpclassify (x) == FP_NORMAL)
-/* Return nonzero value if X is a NaN */
-extern int isnan(double x);
-#define isinf(x) \
- (sizeof (x) == sizeof (float) ? \
- __isinff (x) \
- : sizeof (x) == sizeof (double) ? \
- __isinf (x) : __isinfl (x))
-#else
+
+/* Return nonzero value if X is a NaN. We could use `fpclassify' but
+ we already have this functions `__isnan' and it is faster. */
+# ifdef __NO_LONG_DOUBLE_MATH
+# define isnan(x) \
+ (sizeof (x) == sizeof (float) ? __isnanf (x) : __isnan (x))
+# else
+# define isnan(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __isnanf (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __isnan (x) : __isnanl (x))
+# endif
+
+/* Return nonzero value is X is positive or negative infinity. */
+# ifdef __NO_LONG_DOUBLE_MATH
# define isinf(x) \
(sizeof (x) == sizeof (float) ? __isinff (x) : __isinf (x))
+# else
+# define isinf(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __isinff (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __isinf (x) : __isinfl (x))
+# endif
+
+/* Bitmasks for the math_errhandling macro. */
+# define MATH_ERRNO 1 /* errno set by math functions. */
+# define MATH_ERREXCEPT 2 /* Exceptions raised by math functions. */
+
+#endif /* Use ISO C99. */
+
+#ifdef __USE_MISC
+/* Support for various different standard error handling behaviors. */
+typedef enum
+{
+ _IEEE_ = -1, /* According to IEEE 754/IEEE 854. */
+ _SVID_, /* According to System V, release 4. */
+ _XOPEN_, /* Nowadays also Unix98. */
+ _POSIX_,
+ _ISOC_ /* Actually this is ISO C99. */
+} _LIB_VERSION_TYPE;
+
+/* This variable can be changed at run-time to any of the values above to
+ affect floating point error handling behavior (it may also be necessary
+ to change the hardware FPU exception settings). */
+extern _LIB_VERSION_TYPE _LIB_VERSION;
#endif
-#ifdef __UCLIBC_HAS_LIBM_LONG_DOUBLE__
-/* Return nonzero value if sign of X is negative. */
-extern int signbitl(long double x);
-/* Return nonzero value if X is not +-Inf or NaN. */
-extern int isfinitel(long double x);
-/* Return nonzero value if X is a NaN */
-extern int isnanl(long double x);
-#endif
+#ifdef __USE_SVID
+/* In SVID error handling, `matherr' is called with this description
+ of the exceptional condition.
+
+ We have a problem when using C++ since `exception' is a reserved
+ name in C++. */
+# ifdef __cplusplus
+struct __exception
+# else
+struct exception
+# endif
+ {
+ int type;
+ char *name;
+ double arg1;
+ double arg2;
+ double retval;
+ };
+
+# ifdef __cplusplus
+extern int matherr (struct __exception *__exc) throw ();
+# else
+extern int matherr (struct exception *__exc);
+# endif
+
+# define X_TLOSS 1.41484755040568800000e+16
+
+/* Types of exceptions in the `type' field. */
+# define DOMAIN 1
+# define SING 2
+# define OVERFLOW 3
+# define UNDERFLOW 4
+# define TLOSS 5
+# define PLOSS 6
+
+/* SVID mode specifies returning this large value instead of infinity. */
+# define HUGE 3.40282347e+38F
+
+#else /* !SVID */
+
+# ifdef __USE_XOPEN
+/* X/Open wants another strange constant. */
+# define MAXFLOAT 3.40282347e+38F
+# endif
+
+#endif /* SVID */
/* Some useful constants. */
@@ -316,257 +317,48 @@ extern int isnanl(long double x);
# define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
# define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#endif
+
+/* The above constants are not adequate for computation using `long double's.
+ Therefore we provide as an extension constants with similar names as a
+ GNU extension. Provide enough digits for the 128-bit IEEE quad. */
#ifdef __USE_GNU
-# define M_El M_E
-# define M_LOG2El M_LOG2E
-# define M_LOG10El M_LOG10E
-# define M_LN2l M_LN2
-# define M_LN10l M_LN10
-# define M_PIl M_PI
-# define M_PI_2l M_PI_2
-# define M_PI_4l M_PI_4
-# define M_1_PIl M_1_PI
-# define M_2_PIl M_2_PI
-# define M_2_SQRTPIl M_2_SQRTPI
-# define M_SQRT2l M_SQRT2
-# define M_SQRT1_2l M_SQRT1_2
+# define M_El 2.7182818284590452353602874713526625L /* e */
+# define M_LOG2El 1.4426950408889634073599246810018922L /* log_2 e */
+# define M_LOG10El 0.4342944819032518276511289189166051L /* log_10 e */
+# define M_LN2l 0.6931471805599453094172321214581766L /* log_e 2 */
+# define M_LN10l 2.3025850929940456840179914546843642L /* log_e 10 */
+# define M_PIl 3.1415926535897932384626433832795029L /* pi */
+# define M_PI_2l 1.5707963267948966192313216916397514L /* pi/2 */
+# define M_PI_4l 0.7853981633974483096156608458198757L /* pi/4 */
+# define M_1_PIl 0.3183098861837906715377675267450287L /* 1/pi */
+# define M_2_PIl 0.6366197723675813430755350534900574L /* 2/pi */
+# define M_2_SQRTPIl 1.1283791670955125738961589031215452L /* 2/sqrt(pi) */
+# define M_SQRT2l 1.4142135623730950488016887242096981L /* sqrt(2) */
+# define M_SQRT1_2l 0.7071067811865475244008443621048490L /* 1/sqrt(2) */
#endif
+/* When compiling in strict ISO C compatible mode we must not use the
+ inline functions since they, among other things, do not set the
+ `errno' variable correctly. */
+#if defined __STRICT_ANSI__ && !defined __NO_MATH_INLINES
+# define __NO_MATH_INLINES 1
+#endif
-#ifdef __UCLIBC_HAS_LIBM_DOUBLE__
-/* 7.12.4 Trigonometric functions */
-extern double acos(double x);
-extern double asin(double x);
-extern double atan(double x);
-extern double atan2(double y, double x);
-extern double cos(double x);
-extern double sin(double x);
-extern double tan(double x);
-
-/* 7.12.5 Hyperbolic functions */
-extern double acosh(double x);
-extern double asinh(double x);
-extern double atanh(double x);
-extern double cosh(double x);
-extern double sinh(double x);
-extern double tanh(double x);
-
-/* 7.12.6 Exponential and logarithmic functions */
-extern double exp(double x);
-extern double exp2(double x);
-extern double expm1(double x);
-extern double frexp(double value, int *ex);
-extern int ilogb(double x);
-extern double ldexp(double x, int ex);
-extern double log(double x);
-extern double log10(double x);
-extern double log1p(double x);
-extern double log2(double x);
-extern double logb(double x);
-extern double modf(double value, double *iptr);
-extern double scalbn(double x, int n);
-extern double scalbln(double x, long int n);
-
-/* 7.12.7 Power and absolute-value functions */
-extern double fabs(double x);
-extern double hypot(double x, double y);
-extern double pow(double x, double y);
-extern double sqrt(double x);
-
-/* 7.12.8 Error and gamma functions */
-extern double erf(double x);
-extern double erfc(double x);
-extern double lgamma(double x);
-extern double tgamma(double x);
-
-/* 7.12.9 Nearest integer functions */
-extern double ceil(double x);
-extern double floor(double x);
-extern double nearbyint(double x);
-extern double rint(double x);
-extern long int lrint(double x);
-extern long long int llrint(double x);
-extern double round(double x);
-extern long int lround(double x);
-extern long long int llround(double x);
-extern double trunc(double x);
-
-/* 7.12.10 Remainder functions */
-extern double fmod(double x, double y);
-extern double remainder(double x, double y);
-extern double remquo(double x, double y, int *quo);
-
-/* 7.12.11 Manipulation functions */
-extern double copysign(double x, double y);
-extern double nan(const char *tagp);
-extern double nextafter(double x, double y);
-
-/* 7.12.12 Maximum, minimum, and positive difference functions */
-extern double fdim(double x, double y);
-extern double fmax(double x, double y);
-extern double fmin(double x, double y);
-
-/* 7.12.13 Floating multiply-add */
-extern double fma(double x, double y, double z);
-#endif
-
-#ifdef __UCLIBC_HAS_LIBM_FLOAT__
-/* 7.12.4 Trigonometric functions */
-extern float acosf(float x);
-extern float asinf(float x);
-extern float atanf(float x);
-extern float atan2f(float y, float x);
-extern float cosf(float x);
-extern float sinf(float x);
-extern float tanf(float x);
-
-/* 7.12.5 Hyperbolic functions */
-extern float acoshf(float x);
-extern float asinhf(float x);
-extern float atanhf(float x);
-extern float coshf(float x);
-extern float sinhf(float x);
-extern float tanhf(float x);
-
-/* 7.12.6 Exponential and logarithmic functions */
-extern float expf(float x);
-extern float exp2f(float x);
-extern float expm1f(float x);
-extern float frexpf(float value, int *ex);
-extern int ilogbf(float x);
-extern float ldexpf(float x, int ex);
-extern float logf(float x);
-extern float log10f(float x);
-extern float log1pf(float x);
-extern float log2f(float x);
-extern float logbf(float x);
-extern float modff(float value, float *iptr);
-extern float scalbnf(float x, int n);
-extern float scalblnf(float x, long int n);
-
-/* 7.12.7 Power and absolute-value functions */
-extern float fabsf(float x);
-extern float hypotf(float x, float y);
-extern float powf(float x, float y);
-extern float sqrtf(float x);
-
-/* 7.12.8 Error and gamma functions */
-extern float erff(float x);
-extern float erfcf(float x);
-extern float lgammaf(float x);
-extern float tgammaf(float x);
-
-/* 7.12.9 Nearest integer functions */
-extern float ceilf(float x);
-extern float floorf(float x);
-extern float nearbyintf(float x);
-extern float rintf(float x);
-extern long int lrintf(float x);
-extern long long int llrintf(float x);
-extern float roundf(float x);
-extern long int lroundf(float x);
-extern long long int llroundf(float x);
-extern float truncf(float x);
-
-/* 7.12.10 Remainder functions */
-extern float fmodf(float x, float y);
-extern float remainderf(float x, float y);
-extern float remquof(float x, float y, int *quo);
-
-/* 7.12.11 Manipulation functions */
-extern float copysignf(float x, float y);
-extern float nanf(const char *tagp);
-extern float nextafterf(float x, float y);
-
-/* 7.12.12 Maximum, minimum, and positive difference functions */
-extern float fdimf(float x, float y);
-extern float fmaxf(float x, float y);
-extern float fminf(float x, float y);
-
-/* 7.12.13 Floating multiply-add */
-extern float fmaf(float x, float y, float z);
-#endif
-
-#ifdef __UCLIBC_HAS_LIBM_LONG_DOUBLE__
-/* 7.12.4 Trigonometric functions */
-extern long double acosl(long double x);
-extern long double asinl(long double x);
-extern long double atanl(long double x);
-extern long double atan2l(long double y, long double x);
-extern long double cosl(long double x);
-extern long double sinl(long double x);
-extern long double tanl(long double x);
-
-/* 7.12.5 Hyperbolic functions */
-extern long double acoshl(long double x);
-extern long double asinhl(long double x);
-extern long double atanhl(long double x);
-extern long double coshl(long double x);
-extern long double sinhl(long double x);
-extern long double tanhl(long double x);
-
-/* 7.12.6 Exponential and logarithmic functions */
-extern long double expl(long double x);
-extern long double exp2l(long double x);
-extern long double expm1l(long double x);
-extern long double frexpl(long double value, int *ex);
-extern int ilogbl(long double x);
-extern long double ldexpl(long double x, int ex);
-extern long double logl(long double x);
-extern long double log10l(long double x);
-extern long double log1pl(long double x);
-extern long double log2l(long double x);
-extern long double logbl(long double x);
-extern long double modfl(long double value, long double *iptr);
-extern long double scalbnl(long double x, int n);
-extern long double scalblnl(long double x, long int n);
-
-/* 7.12.7 Power and absolute-value functions */
-extern long double fabsl(long double x);
-extern long double hypotl(long double x, long double y);
-extern long double powl(long double x, long double y);
-extern long double sqrtl(long double x);
-
-/* 7.12.8 Error and gamma functions */
-extern long double erfl(long double x);
-extern long double erfcl(long double x);
-extern long double lgammal(long double x);
-extern long double tgammal(long double x);
-
-/* 7.12.9 Nearest integer functions */
-extern long double ceill(long double x);
-extern long double floorl(long double x);
-extern long double nearbyintl(long double x);
-extern long double rintl(long double x);
-extern long int lrintl(long double x);
-extern long long int llrintl(long double x);
-extern long double roundl(long double x);
-extern long int lroundl(long double x);
-extern long long int llroundl(long double x);
-extern long double truncl(long double x);
-
-/* 7.12.10 Remainder functions */
-extern long double fmodl(long double x, long double y);
-extern long double remainderl(long double x, long double y);
-extern long double remquol(long double x, long double y, int *quo);
-
-/* 7.12.11 Manipulation functions */
-extern long double copysignl(long double x, long double y);
-extern long double nanl(const char *tagp);
-extern long double nextafterl(long double x, long double y);
-extern long double nexttowardl(long double x, long double y);
-
-/* 7.12.12 Maximum, minimum, and positive difference functions */
-extern long double fdiml(long double x, long double y);
-extern long double fmaxl(long double x, long double y);
-extern long double fminl(long double x, long double y);
-
-/* 7.12.13 Floating multiply-add */
-extern long double fmal(long double x, long double y, long double z);
+/* Get machine-dependent inline versions (if there are any). */
+#ifdef __USE_EXTERN_INLINES
+# include <bits/mathinline.h>
#endif
-/* 7.12.14 Comparison macros */
+
+#if __USE_ISOC99
+/* ISO C99 defines some macros to compare number while taking care
+ for unordered numbers. Since many FPUs provide special
+ instructions to support these operations and these tests are
+ defined in <bits/mathinline.h>, we define the generic macros at
+ this late point and only if they are not defined yet. */
+
+/* Return nonzero value if X is greater than Y. */
# ifndef isgreater
# define isgreater(x, y) \
(__extension__ \
@@ -614,6 +406,9 @@ extern long double fmal(long double x, long double y, long double z);
fpclassify (__u) == FP_NAN || fpclassify (__v) == FP_NAN; }))
# endif
+#endif
+
__END_DECLS
+
#endif /* math.h */