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3683b423a4
Continuing the preparation for additional _FloatN / _FloatNx type support, this patch adds support in include/float.h. This header defines macros for _Float128 properties when using compilers before GCC 7 that lack those macros in <float.h>. For testing _Float32 / _Float64 / _Float32x / _Float64x functions with older compilers, such macros need to be defined for those types as well; for the older compilers, those types will always be typedefs for another type, so the definitions can be in terms of the macros for that other type. Tested for x86_64. * include/float.h [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MANT_DIG): New macro. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_TRUE_MIN): Likewise.
114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
#ifndef _LIBC_FLOAT_H
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#define _LIBC_FLOAT_H
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#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
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#include <bits/libc-header-start.h>
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#ifndef _ISOMAC
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# define __STDC_WANT_IEC_60559_TYPES_EXT__
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#endif
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#include_next <float.h>
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/* Supplement float.h macros for _FloatN and _FloatNx for older
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compilers which do not yet support the type. These are described
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in TS 18661-3. */
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#include <features.h>
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#include <bits/floatn.h>
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#if !__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
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# if __HAVE_FLOAT128
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# define FLT128_MANT_DIG 113
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# define FLT128_DECIMAL_DIG 36
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# define FLT128_DIG 33
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# define FLT128_MIN_EXP (-16381)
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# define FLT128_MIN_10_EXP (-4931)
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# define FLT128_MAX_EXP 16384
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# define FLT128_MAX_10_EXP 4932
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# define FLT128_MAX \
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__f128 (1.18973149535723176508575932662800702e+4932)
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# define FLT128_EPSILON \
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__f128 (1.92592994438723585305597794258492732e-34)
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# define FLT128_MIN \
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__f128 (3.36210314311209350626267781732175260e-4932)
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# define FLT128_TRUE_MIN \
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__f128 (6.47517511943802511092443895822764655e-4966)
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# endif
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/* Types other than _Float128 are typedefs for other types with old
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compilers. */
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# if __HAVE_FLOAT32
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# define FLT32_MANT_DIG FLT_MANT_DIG
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# define FLT32_DECIMAL_DIG FLT_DECIMAL_DIG
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# define FLT32_DIG FLT_DIG
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# define FLT32_MIN_EXP FLT_MIN_EXP
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# define FLT32_MIN_10_EXP FLT_MIN_10_EXP
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# define FLT32_MAX_EXP FLT_MAX_EXP
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# define FLT32_MAX_10_EXP FLT_MAX_10_EXP
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# define FLT32_MAX FLT_MAX
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# define FLT32_EPSILON FLT_EPSILON
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# define FLT32_MIN FLT_MIN
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# define FLT32_TRUE_MIN FLT_TRUE_MIN
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# endif
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# if __HAVE_FLOAT64
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# define FLT64_MANT_DIG DBL_MANT_DIG
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# define FLT64_DECIMAL_DIG DBL_DECIMAL_DIG
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# define FLT64_DIG DBL_DIG
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# define FLT64_MIN_EXP DBL_MIN_EXP
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# define FLT64_MIN_10_EXP DBL_MIN_10_EXP
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# define FLT64_MAX_EXP DBL_MAX_EXP
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# define FLT64_MAX_10_EXP DBL_MAX_10_EXP
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# define FLT64_MAX DBL_MAX
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# define FLT64_EPSILON DBL_EPSILON
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# define FLT64_MIN DBL_MIN
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# define FLT64_TRUE_MIN DBL_TRUE_MIN
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# endif
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# if __HAVE_FLOAT32X
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# define FLT32X_MANT_DIG DBL_MANT_DIG
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# define FLT32X_DECIMAL_DIG DBL_DECIMAL_DIG
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# define FLT32X_DIG DBL_DIG
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# define FLT32X_MIN_EXP DBL_MIN_EXP
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# define FLT32X_MIN_10_EXP DBL_MIN_10_EXP
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# define FLT32X_MAX_EXP DBL_MAX_EXP
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# define FLT32X_MAX_10_EXP DBL_MAX_10_EXP
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# define FLT32X_MAX DBL_MAX
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# define FLT32X_EPSILON DBL_EPSILON
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# define FLT32X_MIN DBL_MIN
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# define FLT32X_TRUE_MIN DBL_TRUE_MIN
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# endif
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# if __HAVE_FLOAT64X
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# if __HAVE_FLOAT64X_LONG_DOUBLE
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# define FLT64X_MANT_DIG LDBL_MANT_DIG
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# define FLT64X_DECIMAL_DIG LDBL_DECIMAL_DIG
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# define FLT64X_DIG LDBL_DIG
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# define FLT64X_MIN_EXP LDBL_MIN_EXP
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# define FLT64X_MIN_10_EXP LDBL_MIN_10_EXP
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# define FLT64X_MAX_EXP LDBL_MAX_EXP
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# define FLT64X_MAX_10_EXP LDBL_MAX_10_EXP
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# define FLT64X_MAX LDBL_MAX
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# define FLT64X_EPSILON LDBL_EPSILON
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# define FLT64X_MIN LDBL_MIN
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# define FLT64X_TRUE_MIN LDBL_TRUE_MIN
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# else
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# define FLT64X_MANT_DIG FLT128_MANT_DIG
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# define FLT64X_DECIMAL_DIG FLT128_DECIMAL_DIG
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# define FLT64X_DIG FLT128_DIG
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# define FLT64X_MIN_EXP FLT128_MIN_EXP
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# define FLT64X_MIN_10_EXP FLT128_MIN_10_EXP
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# define FLT64X_MAX_EXP FLT128_MAX_EXP
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# define FLT64X_MAX_10_EXP FLT128_MAX_10_EXP
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# define FLT64X_MAX FLT128_MAX
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# define FLT64X_EPSILON FLT128_EPSILON
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# define FLT64X_MIN FLT128_MIN
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# define FLT64X_TRUE_MIN FLT128_TRUE_MIN
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# endif
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# endif
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#endif
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#endif /* _LIBC_FLOAT_H */
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