diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h index cfaed0ed98..daf58ab16a 100644 --- a/math/math.h +++ b/math/math.h @@ -34,9 +34,17 @@ __BEGIN_DECLS /* Get machine-dependent vector math functions declarations. */ #include <bits/math-vector.h> +/* Gather machine dependent type support. */ +#include <bits/floatn.h> + /* Get machine-dependent HUGE_VAL value (returned on overflow). On all IEEE754 machines, this is +Infinity. */ #include <bits/huge_val.h> + +#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT) +# include <bits/huge_val_flt128.h> +#endif + #ifdef __USE_ISOC99 # include <bits/huge_valf.h> # include <bits/huge_vall.h> @@ -208,11 +216,13 @@ enum #define _Mdouble_ double #define __MATH_PRECNAME(name,r) __CONCAT(name,r) #define __MATH_DECLARING_DOUBLE 1 +#define __MATH_DECLARING_FLOATN 0 #include <bits/mathcalls-helper-functions.h> #include <bits/mathcalls.h> #undef _Mdouble_ #undef __MATH_PRECNAME #undef __MATH_DECLARING_DOUBLE +#undef __MATH_DECLARING_FLOATN #ifdef __USE_ISOC99 @@ -226,11 +236,13 @@ enum # define _Mdouble_ _Mfloat_ # define __MATH_PRECNAME(name,r) name##f##r # define __MATH_DECLARING_DOUBLE 0 +# define __MATH_DECLARING_FLOATN 0 # include <bits/mathcalls-helper-functions.h> # include <bits/mathcalls.h> # undef _Mdouble_ # undef __MATH_PRECNAME # undef __MATH_DECLARING_DOUBLE +# undef __MATH_DECLARING_FLOATN # if !(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \ || defined __LDBL_COMPAT \ @@ -269,16 +281,42 @@ extern long double __REDIRECT_NTH (nexttowardl, # define _Mdouble_ _Mlong_double_ # define __MATH_PRECNAME(name,r) name##l##r # define __MATH_DECLARING_DOUBLE 0 +# define __MATH_DECLARING_FLOATN 0 # define __MATH_DECLARE_LDOUBLE 1 # include <bits/mathcalls-helper-functions.h> # include <bits/mathcalls.h> # undef _Mdouble_ # undef __MATH_PRECNAME # undef __MATH_DECLARING_DOUBLE +# undef __MATH_DECLARING_FLOATN # endif /* !(__NO_LONG_DOUBLE_MATH && _LIBC) || __LDBL_COMPAT */ #endif /* Use ISO C99. */ + +/* Include the file of declarations again, this time using `_Float128' + instead of `double' and appending f128 to each function name. */ + +#if __HAVE_DISTINCT_FLOAT128 || (__HAVE_FLOAT128 && !defined _LIBC) +# ifndef _Mfloat128_ +# define _Mfloat128_ _Float128 +# endif +# define _Mdouble_ _Mfloat128_ +# define __MATH_PRECNAME(name,r) name##f128##r +# define __MATH_DECLARING_DOUBLE 0 +# define __MATH_DECLARING_FLOATN 1 +# if __HAVE_DISTINCT_FLOAT128 +# include <bits/mathcalls-helper-functions.h> +# endif +# if __GLIBC_USE (IEC_60559_TYPES_EXT) +# include <bits/mathcalls.h> +# endif +# undef _Mdouble_ +# undef __MATH_PRECNAME +# undef __MATH_DECLARING_DOUBLE +# undef __MATH_DECLARING_FLOATN +#endif /* __HAVE_DISTINCT_FLOAT128. */ + #undef __MATHDECL_1 #undef __MATHDECL #undef __MATHCALL @@ -348,7 +386,9 @@ enum # endif /* Return nonzero value if sign of X is negative. */ -# if __GNUC_PREREQ (4,0) +# if __GNUC_PREREQ (6,0) +# define signbit(x) __builtin_signbit (x) +# elif __GNUC_PREREQ (4,0) # define signbit(x) __MATH_TG ((x), __builtin_signbit, (x)) # else # define signbit(x) __MATH_TG ((x), __signbit, (x)) @@ -377,7 +417,13 @@ enum # endif /* Return nonzero value if X is positive or negative infinity. */ -# if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ +# if __HAVE_DISTINCT_FLOAT128 && !__GNUC_PREREQ (7,0) \ + && !defined __SUPPORT_SNAN__ + /* __builtin_isinf_sign is broken for float128 only before GCC 7.0. */ +# define isinf(x) \ + (__builtin_types_compatible_p (__typeof (x), _Float128) \ + ? __isinff128 (x) : __builtin_isinf_sign (x)) +# elif __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ # define isinf(x) __builtin_isinf_sign (x) # else # define isinf(x) __MATH_TG ((x), __isinf, (x)) @@ -529,6 +575,21 @@ extern int matherr (struct exception *__exc); # define M_SQRT1_2l 0.707106781186547524400844362104849039L /* 1/sqrt(2) */ #endif +#if __HAVE_FLOAT128 && defined __USE_GNU +# define M_Ef128 __f128 (2.718281828459045235360287471352662498) /* e */ +# define M_LOG2Ef128 __f128 (1.442695040888963407359924681001892137) /* log_2 e */ +# define M_LOG10Ef128 __f128 (0.434294481903251827651128918916605082) /* log_10 e */ +# define M_LN2f128 __f128 (0.693147180559945309417232121458176568) /* log_e 2 */ +# define M_LN10f128 __f128 (2.302585092994045684017991454684364208) /* log_e 10 */ +# define M_PIf128 __f128 (3.141592653589793238462643383279502884) /* pi */ +# define M_PI_2f128 __f128 (1.570796326794896619231321691639751442) /* pi/2 */ +# define M_PI_4f128 __f128 (0.785398163397448309615660845819875721) /* pi/4 */ +# define M_1_PIf128 __f128 (0.318309886183790671537767526745028724) /* 1/pi */ +# define M_2_PIf128 __f128 (0.636619772367581343075535053490057448) /* 2/pi */ +# define M_2_SQRTPIf128 __f128 (1.128379167095512573896158903121545172) /* 2/sqrt(pi) */ +# define M_SQRT2f128 __f128 (1.414213562373095048801688724209698079) /* sqrt(2) */ +# define M_SQRT1_2f128 __f128 (0.707106781186547524400844362104849039) /* 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 |