glibc/include/float.h

#ifndef _LIBC_FLOAT_H
#define _LIBC_FLOAT_H

#ifndef _ISOMAC
# define __STDC_WANT_IEC_60559_TYPES_EXT__
#endif

#include_next <float.h>

/* Supplement float.h macros for _Float128 for older compilers
   which do not yet support the type.  These are described in
   TS 18661-3.  */
#ifndef _ISOMAC
# include <features.h>
# include <bits/floatn.h>
# if !__GNUC_PREREQ (7, 0) && __HAVE_DISTINCT_FLOAT128
#  define FLT128_MANT_DIG	113
#  define FLT128_DECIMAL_DIG	36
#  define FLT128_DIG		33
#  define FLT128_MIN_EXP	(-16381)
#  define FLT128_MIN_10_EXP	(-4931)
#  define FLT128_MAX_EXP	16384
#  define FLT128_MAX_10_EXP	4932
#  define FLT128_MAX		1.18973149535723176508575932662800702e+4932Q
#  define FLT128_EPSILON	1.92592994438723585305597794258492732e-34Q
#  define FLT128_MIN		3.36210314311209350626267781732175260e-4932Q
#  define FLT128_TRUE_MIN	6.47517511943802511092443895822764655e-4966Q
# endif
#endif

#endif /* _LIBC_FLOAT_H */
float128: Add private _Float128 declarations for libm. Add the necessary bits to the private headers to support building the _Float128 libm functions. A local override for float.h is provided to include the missing FLT128 macros implied by TS 18661-3 for this type when compiling prior to GCC 7. include/complex.h (__kernel_casinhf128): New declaration. * include/float.h: New file. * include/math.h (__finitef128): Add a hidden def. (__isinff128): Likewise. (__isnanf128): Likewise. (__fpclassify): Likewise. (__issignalling): Likewise. (__expf128): Likewise. (__expm1f128): Likewise. * sysdeps/generic/fix-fp-int-convert-overflow.h: (FIX_FLT128_LONG_CONVERT_OVERFLOW): New macro. (FIX_FLT128_LLONG_CONVERT_OVERFLOW): Likewise. * sysdeps/generic/math-type-macros-float128.h: New file. * sysdeps/generic/math_private.h: Include bits/floatn.h and math_private_calls.h for _Float128. (__isinff128): New inline implementation used when GCC < 7.0, since in this case __builtin_isinf_sign is broken. (fabsf128): New inline implementation that calls the builtin. (__EXPR_FLT128): New macro. (min_of_type): Optionally include _Float128 types too. * sysdeps/generic/math_private_calls.h (__kernel_sincos): Declare for _Float128. (__kernel_rem_pio2): Likewise. * sysdeps/ieee754/ldbl-opt/s_sin.c: (__DECL_SIMD_sincos_disablef128): New macro. 2017-05-04 20:00:33 +00:00			`#ifndef _LIBC_FLOAT_H`
			`#define _LIBC_FLOAT_H`

			`#ifndef _ISOMAC`
			`# define __STDC_WANT_IEC_60559_TYPES_EXT__`
			`#endif`

			`#include_next <float.h>`

			`/* Supplement float.h macros for _Float128 for older compilers`
			`which do not yet support the type. These are described in`
			`TS 18661-3. */`
			`#ifndef _ISOMAC`
			`# include <features.h>`
			`# include <bits/floatn.h>`
			`# if !__GNUC_PREREQ (7, 0) && __HAVE_DISTINCT_FLOAT128`
			`# define FLT128_MANT_DIG 113`
			`# define FLT128_DECIMAL_DIG 36`
			`# define FLT128_DIG 33`
			`# define FLT128_MIN_EXP (-16381)`
			`# define FLT128_MIN_10_EXP (-4931)`
			`# define FLT128_MAX_EXP 16384`
			`# define FLT128_MAX_10_EXP 4932`
			`# define FLT128_MAX 1.18973149535723176508575932662800702e+4932Q`
			`# define FLT128_EPSILON 1.92592994438723585305597794258492732e-34Q`
			`# define FLT128_MIN 3.36210314311209350626267781732175260e-4932Q`
			`# define FLT128_TRUE_MIN 6.47517511943802511092443895822764655e-4966Q`
			`# endif`
			`#endif`

			`#endif /* _LIBC_FLOAT_H */`