| /* Copyright (C) 2002, 2007, 2008, 2009 Free Software Foundation, Inc. | |
| This file is part of GCC. | |
| GCC is free software; you can redistribute it and/or modify | |
| it under the terms of the GNU General Public License as published by | |
| the Free Software Foundation; either version 2, or (at your option) | |
| any later version. | |
| GCC is distributed in the hope that it will be useful, | |
| but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| GNU General Public License for more details. | |
| You should have received a copy of the GNU General Public License | |
| along with GCC; see the file COPYING. If not, write to | |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
| Boston, MA 02110-1301, USA. */ | |
| /* As a special exception, if you include this header file into source | |
| files compiled by GCC, this header file does not by itself cause | |
| the resulting executable to be covered by the GNU General Public | |
| License. This exception does not however invalidate any other | |
| reasons why the executable file might be covered by the GNU General | |
| Public License. */ | |
| /* | |
| * ISO C Standard: 5.2.4.2.2 Characteristics of floating types <float.h> | |
| */ | |
| #ifndef _FLOAT_H___ | |
| #define _FLOAT_H___ | |
| #if defined (__GNUC__) && defined (__GNUC_MINOR__) | |
| #if (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)) | |
| #error The installed header-set does not support your version of GCC. | |
| #error Please update your header-set or use GCC 4.5.X. | |
| #endif | |
| #endif /* defined (__GNUC__) && defined (__GNUC_MINOR__) */ | |
| /* Radix of exponent representation, b. */ | |
| #undef FLT_RADIX | |
| #define FLT_RADIX __FLT_RADIX__ | |
| /* Number of base-FLT_RADIX digits in the significand, p. */ | |
| #undef FLT_MANT_DIG | |
| #undef DBL_MANT_DIG | |
| #undef LDBL_MANT_DIG | |
| #define FLT_MANT_DIG __FLT_MANT_DIG__ | |
| #define DBL_MANT_DIG __DBL_MANT_DIG__ | |
| #define LDBL_MANT_DIG __LDBL_MANT_DIG__ | |
| /* Number of decimal digits, q, such that any floating-point number with q | |
| decimal digits can be rounded into a floating-point number with p radix b | |
| digits and back again without change to the q decimal digits, | |
| p * log10(b) if b is a power of 10 | |
| floor((p - 1) * log10(b)) otherwise | |
| */ | |
| #undef FLT_DIG | |
| #undef DBL_DIG | |
| #undef LDBL_DIG | |
| #define FLT_DIG __FLT_DIG__ | |
| #define DBL_DIG __DBL_DIG__ | |
| #define LDBL_DIG __LDBL_DIG__ | |
| /* Minimum int x such that FLT_RADIX**(x-1) is a normalized float, emin */ | |
| #undef FLT_MIN_EXP | |
| #undef DBL_MIN_EXP | |
| #undef LDBL_MIN_EXP | |
| #define FLT_MIN_EXP __FLT_MIN_EXP__ | |
| #define DBL_MIN_EXP __DBL_MIN_EXP__ | |
| #define LDBL_MIN_EXP __LDBL_MIN_EXP__ | |
| /* Minimum negative integer such that 10 raised to that power is in the | |
| range of normalized floating-point numbers, | |
| ceil(log10(b) * (emin - 1)) | |
| */ | |
| #undef FLT_MIN_10_EXP | |
| #undef DBL_MIN_10_EXP | |
| #undef LDBL_MIN_10_EXP | |
| #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ | |
| #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ | |
| #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ | |
| /* Maximum int x such that FLT_RADIX**(x-1) is a representable float, emax. */ | |
| #undef FLT_MAX_EXP | |
| #undef DBL_MAX_EXP | |
| #undef LDBL_MAX_EXP | |
| #define FLT_MAX_EXP __FLT_MAX_EXP__ | |
| #define DBL_MAX_EXP __DBL_MAX_EXP__ | |
| #define LDBL_MAX_EXP __LDBL_MAX_EXP__ | |
| /* Maximum integer such that 10 raised to that power is in the range of | |
| representable finite floating-point numbers, | |
| floor(log10((1 - b**-p) * b**emax)) | |
| */ | |
| #undef FLT_MAX_10_EXP | |
| #undef DBL_MAX_10_EXP | |
| #undef LDBL_MAX_10_EXP | |
| #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ | |
| #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ | |
| #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ | |
| /* Maximum representable finite floating-point number, | |
| (1 - b**-p) * b**emax | |
| */ | |
| #undef FLT_MAX | |
| #undef DBL_MAX | |
| #undef LDBL_MAX | |
| #define FLT_MAX __FLT_MAX__ | |
| #define DBL_MAX __DBL_MAX__ | |
| #define LDBL_MAX __LDBL_MAX__ | |
| /* The difference between 1 and the least value greater than 1 that is | |
| representable in the given floating point type, b**1-p. */ | |
| #undef FLT_EPSILON | |
| #undef DBL_EPSILON | |
| #undef LDBL_EPSILON | |
| #define FLT_EPSILON __FLT_EPSILON__ | |
| #define DBL_EPSILON __DBL_EPSILON__ | |
| #define LDBL_EPSILON __LDBL_EPSILON__ | |
| /* Minimum normalized positive floating-point number, b**(emin - 1). */ | |
| #undef FLT_MIN | |
| #undef DBL_MIN | |
| #undef LDBL_MIN | |
| #define FLT_MIN __FLT_MIN__ | |
| #define DBL_MIN __DBL_MIN__ | |
| #define LDBL_MIN __LDBL_MIN__ | |
| /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown. */ | |
| /* ??? This is supposed to change with calls to fesetround in <fenv.h>. */ | |
| #undef FLT_ROUNDS | |
| #define FLT_ROUNDS 1 | |
| #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L | |
| /* The floating-point expression evaluation method. | |
| -1 indeterminate | |
| 0 evaluate all operations and constants just to the range and | |
| precision of the type | |
| 1 evaluate operations and constants of type float and double | |
| to the range and precision of the double type, evaluate | |
| long double operations and constants to the range and | |
| precision of the long double type | |
| 2 evaluate all operations and constants to the range and | |
| precision of the long double type | |
| ??? This ought to change with the setting of the fp control word; | |
| the value provided by the compiler assumes the widest setting. */ | |
| #undef FLT_EVAL_METHOD | |
| #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ | |
| /* Number of decimal digits, n, such that any floating-point number in the | |
| widest supported floating type with pmax radix b digits can be rounded | |
| to a floating-point number with n decimal digits and back again without | |
| change to the value, | |
| pmax * log10(b) if b is a power of 10 | |
| ceil(1 + pmax * log10(b)) otherwise | |
| */ | |
| #undef DECIMAL_DIG | |
| #define DECIMAL_DIG __DECIMAL_DIG__ | |
| #endif /* C99 */ | |
| #ifdef __STDC_WANT_DEC_FP__ | |
| /* Draft Technical Report 24732, extension for decimal floating-point | |
| arithmetic: Characteristic of decimal floating types <float.h>. */ | |
| /* Number of base-FLT_RADIX digits in the significand, p. */ | |
| #undef DEC32_MANT_DIG | |
| #undef DEC64_MANT_DIG | |
| #undef DEC128_MANT_DIG | |
| #define DEC32_MANT_DIG __DEC32_MANT_DIG__ | |
| #define DEC64_MANT_DIG __DEC64_MANT_DIG__ | |
| #define DEC128_MANT_DIG __DEC128_MANT_DIG__ | |
| /* Minimum exponent. */ | |
| #undef DEC32_MIN_EXP | |
| #undef DEC64_MIN_EXP | |
| #undef DEC128_MIN_EXP | |
| #define DEC32_MIN_EXP __DEC32_MIN_EXP__ | |
| #define DEC64_MIN_EXP __DEC64_MIN_EXP__ | |
| #define DEC128_MIN_EXP __DEC128_MIN_EXP__ | |
| /* Maximum exponent. */ | |
| #undef DEC32_MAX_EXP | |
| #undef DEC64_MAX_EXP | |
| #undef DEC128_MAX_EXP | |
| #define DEC32_MAX_EXP __DEC32_MAX_EXP__ | |
| #define DEC64_MAX_EXP __DEC64_MAX_EXP__ | |
| #define DEC128_MAX_EXP __DEC128_MAX_EXP__ | |
| /* Maximum representable finite decimal floating-point number | |
| (there are 6, 15, and 33 9s after the decimal points respectively). */ | |
| #undef DEC32_MAX | |
| #undef DEC64_MAX | |
| #undef DEC128_MAX | |
| #define DEC32_MAX __DEC32_MAX__ | |
| #define DEC64_MAX __DEC64_MAX__ | |
| #define DEC128_MAX __DEC128_MAX__ | |
| /* The difference between 1 and the least value greater than 1 that is | |
| representable in the given floating point type. */ | |
| #undef DEC32_EPSILON | |
| #undef DEC64_EPSILON | |
| #undef DEC128_EPSILON | |
| #define DEC32_EPSILON __DEC32_EPSILON__ | |
| #define DEC64_EPSILON __DEC64_EPSILON__ | |
| #define DEC128_EPSILON __DEC128_EPSILON__ | |
| /* Minimum normalized positive floating-point number. */ | |
| #undef DEC32_MIN | |
| #undef DEC64_MIN | |
| #undef DEC128_MIN | |
| #define DEC32_MIN __DEC32_MIN__ | |
| #define DEC64_MIN __DEC64_MIN__ | |
| #define DEC128_MIN __DEC128_MIN__ | |
| /* Minimum subnormal positive floating-point number. */ | |
| #undef DEC32_SUBNORMAL_MIN | |
| #undef DEC64_SUBNORMAL_MIN | |
| #undef DEC128_SUBNORMAL_MIN | |
| #define DEC32_SUBNORMAL_MIN __DEC32_SUBNORMAL_MIN__ | |
| #define DEC64_SUBNORMAL_MIN __DEC64_SUBNORMAL_MIN__ | |
| #define DEC128_SUBNORMAL_MIN __DEC128_SUBNORMAL_MIN__ | |
| /* The floating-point expression evaluation method. | |
| -1 indeterminate | |
| 0 evaluate all operations and constants just to the range and | |
| precision of the type | |
| 1 evaluate operations and constants of type _Decimal32 | |
| and _Decimal64 to the range and precision of the _Decimal64 | |
| type, evaluate _Decimal128 operations and constants to the | |
| range and precision of the _Decimal128 type; | |
| 2 evaluate all operations and constants to the range and | |
| precision of the _Decimal128 type. */ | |
| #undef DEC_EVAL_METHOD | |
| #define DEC_EVAL_METHOD __DEC_EVAL_METHOD__ | |
| #endif /* __STDC_WANT_DEC_FP__ */ | |
| #endif /* _FLOAT_H___ */ | |
| /* include the MS-specific extensions */ | |
| #include <_mingw_float.h> | |