/* Declarations for math functions.
- Copyright (C) 1991-1993,1995-1999,2001,2002,2004 Free Software Foundation, Inc.
+ Copyright (C) 1991-2015 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
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. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.12 Mathematics <math.h>
#define __MATHDECL_1(type, function,suffix, args) \
extern type __MATH_PRECNAME(function,suffix) args __THROW
-#define _Mdouble_ double
+#define _Mdouble_ double
#define __MATH_PRECNAME(name,r) __CONCAT(name,r)
-# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
-# define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD
+#define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
+#define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD
#include <bits/mathcalls.h>
#undef _Mdouble_
#undef _Mdouble_BEGIN_NAMESPACE
#undef _Mdouble_END_NAMESPACE
#undef __MATH_PRECNAME
-#if defined __USE_MISC || defined __USE_ISOC99
+#ifdef __USE_ISOC99
/* Include the file of declarations again, this time using `float'
# 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
+# define _Mdouble_ _Mfloat_
+# define __MATH_PRECNAME(name,r) name##f##r
# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99
# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99
# include <bits/mathcalls.h>
# undef _Mdouble_END_NAMESPACE
# undef __MATH_PRECNAME
-# if (__STDC__ - 0 || __GNUC__ - 0) && !defined __NO_LONG_DOUBLE_MATH
+# if !(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \
+ || defined __LDBL_COMPAT \
+ || defined _LIBC_TEST
+# ifdef __LDBL_COMPAT
+
+# ifdef __USE_ISOC99
+extern float __nldbl_nexttowardf (float __x, long double __y)
+ __THROW __attribute__ ((__const__));
+# ifdef __REDIRECT_NTH
+extern float __REDIRECT_NTH (nexttowardf, (float __x, long double __y),
+ __nldbl_nexttowardf)
+ __attribute__ ((__const__));
+extern double __REDIRECT_NTH (nexttoward, (double __x, long double __y),
+ nextafter) __attribute__ ((__const__));
+extern long double __REDIRECT_NTH (nexttowardl,
+ (long double __x, long double __y),
+ nextafter) __attribute__ ((__const__));
+# endif
+# endif
+
+# undef __MATHDECL_1
+# define __MATHDECL_2(type, function,suffix, args, alias) \
+ extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix), \
+ args, alias)
+# define __MATHDECL_1(type, function,suffix, args) \
+ __MATHDECL_2(type, function,suffix, args, __CONCAT(function,suffix))
+# endif
+
/* 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
+# define _Mdouble_ _Mlong_double_
+# define __MATH_PRECNAME(name,r) name##l##r
# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99
# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99
+# define __MATH_DECLARE_LDOUBLE 1
# include <bits/mathcalls.h>
# undef _Mdouble_
-# undef _Mdouble_BEGIN_NAMESPACE
-# undef _Mdouble_END_NAMESPACE
+# undef _Mdouble_BEGIN_NAMESPACE
+# undef _Mdouble_END_NAMESPACE
# undef __MATH_PRECNAME
-# endif /* __STDC__ || __GNUC__ */
+# endif /* !(__NO_LONG_DOUBLE_MATH && _LIBC) || __LDBL_COMPAT */
-#endif /* Use misc or ISO C99. */
+#endif /* Use ISO C99. */
#undef __MATHDECL_1
#undef __MATHDECL
#undef __MATHCALL
/* All floating-point numbers can be put in one of these categories. */
enum
{
- FP_NAN,
-# define FP_NAN FP_NAN
- FP_INFINITE,
-# define FP_INFINITE FP_INFINITE
- FP_ZERO,
-# define FP_ZERO FP_ZERO
- FP_SUBNORMAL,
-# define FP_SUBNORMAL FP_SUBNORMAL
- FP_NORMAL
-# define FP_NORMAL FP_NORMAL
+ FP_NAN =
+# define FP_NAN 0
+ FP_NAN,
+ FP_INFINITE =
+# define FP_INFINITE 1
+ FP_INFINITE,
+ FP_ZERO =
+# define FP_ZERO 2
+ FP_ZERO,
+ FP_SUBNORMAL =
+# define FP_SUBNORMAL 3
+ FP_SUBNORMAL,
+ FP_NORMAL =
+# define FP_NORMAL 4
+ FP_NORMAL
};
/* Return number of classification appropriate for X. */
? __isnan (x) : __isnanl (x))
# endif
-/* Return nonzero value is X is positive or negative infinity. */
+/* Return nonzero value if X is positive or negative infinity. */
# ifdef __NO_LONG_DOUBLE_MATH
# define isinf(x) \
(sizeof (x) == sizeof (float) ? __isinff (x) : __isinf (x))
# define MATH_ERRNO 1 /* errno set by math functions. */
# define MATH_ERREXCEPT 2 /* Exceptions raised by math functions. */
+/* By default all functions support both errno and exception handling.
+ In gcc's fast math mode and if inline functions are defined this
+ might not be true. */
+# ifndef __FAST_MATH__
+# define math_errhandling (MATH_ERRNO | MATH_ERREXCEPT)
+# endif
+
#endif /* Use ISO C99. */
+#ifdef __USE_GNU
+/* Return nonzero value if X is a signaling NaN. */
+# ifdef __NO_LONG_DOUBLE_MATH
+# define issignaling(x) \
+ (sizeof (x) == sizeof (float) ? __issignalingf (x) : __issignaling (x))
+# else
+# define issignaling(x) \
+ (sizeof (x) == sizeof (float) \
+ ? __issignalingf (x) \
+ : sizeof (x) == sizeof (double) \
+ ? __issignaling (x) : __issignalingl (x))
+# endif
+#endif /* Use GNU. */
+
#ifdef __USE_MISC
/* Support for various different standard error handling behaviors. */
typedef enum
#endif
-#ifdef __USE_SVID
+#ifdef __USE_MISC
/* In SVID error handling, `matherr' is called with this description
of the exceptional condition.
/* SVID mode specifies returning this large value instead of infinity. */
# define HUGE 3.40282347e+38F
-#else /* !SVID */
+#else /* !Misc. */
# ifdef __USE_XOPEN
/* X/Open wants another strange constant. */
# define MAXFLOAT 3.40282347e+38F
# endif
-#endif /* SVID */
+#endif /* Misc. */
/* Some useful constants. */
-#if defined __USE_BSD || defined __USE_XOPEN
+#if defined __USE_MISC || defined __USE_XOPEN
# define M_E 2.7182818284590452354 /* e */
# define M_LOG2E 1.4426950408889634074 /* log_2 e */
# define M_LOG10E 0.43429448190325182765 /* log_10 e */
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 2.7182818284590452353602874713526625L /* e */
-# define M_LOG2El 1.4426950408889634073599246810018921L /* 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) */
+# define M_El 2.718281828459045235360287471352662498L /* e */
+# define M_LOG2El 1.442695040888963407359924681001892137L /* log_2 e */
+# define M_LOG10El 0.434294481903251827651128918916605082L /* log_10 e */
+# define M_LN2l 0.693147180559945309417232121458176568L /* log_e 2 */
+# define M_LN10l 2.302585092994045684017991454684364208L /* log_e 10 */
+# define M_PIl 3.141592653589793238462643383279502884L /* pi */
+# define M_PI_2l 1.570796326794896619231321691639751442L /* pi/2 */
+# define M_PI_4l 0.785398163397448309615660845819875721L /* pi/4 */
+# define M_1_PIl 0.318309886183790671537767526745028724L /* 1/pi */
+# define M_2_PIl 0.636619772367581343075535053490057448L /* 2/pi */
+# define M_2_SQRTPIl 1.128379167095512573896158903121545172L /* 2/sqrt(pi) */
+# define M_SQRT2l 1.414213562373095048801688724209698079L /* sqrt(2) */
+# define M_SQRT1_2l 0.707106781186547524400844362104849039L /* 1/sqrt(2) */
#endif
# include <bits/mathinline.h>
#endif
+/* Define special entry points to use when the compiler got told to
+ only expect finite results. */
+#if defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0
+# include <bits/math-finite.h>
+#endif
+
#ifdef __USE_ISOC99
/* If we've still got undefined comparison macros, provide defaults. */
projects / thirdparty / glibc.git / blobdiff