diff options
Diffstat (limited to 'include/float.h')
-rw-r--r-- | include/float.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/float.h b/include/float.h new file mode 100644 index 0000000000..7e65bb83cb --- /dev/null +++ b/include/float.h @@ -0,0 +1,113 @@ +#ifndef _LIBC_FLOAT_H +#define _LIBC_FLOAT_H + +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> + +#ifndef _ISOMAC +# define __STDC_WANT_IEC_60559_TYPES_EXT__ +#endif + +#include_next <float.h> + +/* Supplement float.h macros for _FloatN and _FloatNx for older + compilers which do not yet support the type. These are described + in TS 18661-3. */ +#include <features.h> +#include <bits/floatn.h> +#if !__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) + +# if __HAVE_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 \ + __f128 (1.18973149535723176508575932662800702e+4932) +# define FLT128_EPSILON \ + __f128 (1.92592994438723585305597794258492732e-34) +# define FLT128_MIN \ + __f128 (3.36210314311209350626267781732175260e-4932) +# define FLT128_TRUE_MIN \ + __f128 (6.47517511943802511092443895822764655e-4966) +# endif + +/* Types other than _Float128 are typedefs for other types with old + compilers. */ + +# if __HAVE_FLOAT32 +# define FLT32_MANT_DIG FLT_MANT_DIG +# define FLT32_DECIMAL_DIG FLT_DECIMAL_DIG +# define FLT32_DIG FLT_DIG +# define FLT32_MIN_EXP FLT_MIN_EXP +# define FLT32_MIN_10_EXP FLT_MIN_10_EXP +# define FLT32_MAX_EXP FLT_MAX_EXP +# define FLT32_MAX_10_EXP FLT_MAX_10_EXP +# define FLT32_MAX FLT_MAX +# define FLT32_EPSILON FLT_EPSILON +# define FLT32_MIN FLT_MIN +# define FLT32_TRUE_MIN FLT_TRUE_MIN +# endif + +# if __HAVE_FLOAT64 +# define FLT64_MANT_DIG DBL_MANT_DIG +# define FLT64_DECIMAL_DIG DBL_DECIMAL_DIG +# define FLT64_DIG DBL_DIG +# define FLT64_MIN_EXP DBL_MIN_EXP +# define FLT64_MIN_10_EXP DBL_MIN_10_EXP +# define FLT64_MAX_EXP DBL_MAX_EXP +# define FLT64_MAX_10_EXP DBL_MAX_10_EXP +# define FLT64_MAX DBL_MAX +# define FLT64_EPSILON DBL_EPSILON +# define FLT64_MIN DBL_MIN +# define FLT64_TRUE_MIN DBL_TRUE_MIN +# endif + +# if __HAVE_FLOAT32X +# define FLT32X_MANT_DIG DBL_MANT_DIG +# define FLT32X_DECIMAL_DIG DBL_DECIMAL_DIG +# define FLT32X_DIG DBL_DIG +# define FLT32X_MIN_EXP DBL_MIN_EXP +# define FLT32X_MIN_10_EXP DBL_MIN_10_EXP +# define FLT32X_MAX_EXP DBL_MAX_EXP +# define FLT32X_MAX_10_EXP DBL_MAX_10_EXP +# define FLT32X_MAX DBL_MAX +# define FLT32X_EPSILON DBL_EPSILON +# define FLT32X_MIN DBL_MIN +# define FLT32X_TRUE_MIN DBL_TRUE_MIN +# endif + +# if __HAVE_FLOAT64X +# if __HAVE_FLOAT64X_LONG_DOUBLE +# define FLT64X_MANT_DIG LDBL_MANT_DIG +# define FLT64X_DECIMAL_DIG LDBL_DECIMAL_DIG +# define FLT64X_DIG LDBL_DIG +# define FLT64X_MIN_EXP LDBL_MIN_EXP +# define FLT64X_MIN_10_EXP LDBL_MIN_10_EXP +# define FLT64X_MAX_EXP LDBL_MAX_EXP +# define FLT64X_MAX_10_EXP LDBL_MAX_10_EXP +# define FLT64X_MAX LDBL_MAX +# define FLT64X_EPSILON LDBL_EPSILON +# define FLT64X_MIN LDBL_MIN +# define FLT64X_TRUE_MIN LDBL_TRUE_MIN +# else +# define FLT64X_MANT_DIG FLT128_MANT_DIG +# define FLT64X_DECIMAL_DIG FLT128_DECIMAL_DIG +# define FLT64X_DIG FLT128_DIG +# define FLT64X_MIN_EXP FLT128_MIN_EXP +# define FLT64X_MIN_10_EXP FLT128_MIN_10_EXP +# define FLT64X_MAX_EXP FLT128_MAX_EXP +# define FLT64X_MAX_10_EXP FLT128_MAX_10_EXP +# define FLT64X_MAX FLT128_MAX +# define FLT64X_EPSILON FLT128_EPSILON +# define FLT64X_MIN FLT128_MIN +# define FLT64X_TRUE_MIN FLT128_TRUE_MIN +# endif +# endif + +#endif + +#endif /* _LIBC_FLOAT_H */ |