141 lines
4.0 KiB
C
141 lines
4.0 KiB
C
/* Copyright (c) 2017 Apple Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* The contents of this file constitute Original Code as defined in and
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* are subject to the Apple Public Source License Version 1.1 (the
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* "License"). You may not use this file except in compliance with the
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* License. Please obtain a copy of the License at
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* http://www.apple.com/publicsource and read it before using this file.
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*
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* This Original Code and all software distributed under the License are
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* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#ifndef __FLOAT_H
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#define __FLOAT_H
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/* Undefine anything that we'll be redefining below. */
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#undef FLT_EVAL_METHOD
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#undef FLT_ROUNDS
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#undef FLT_RADIX
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#undef FLT_MANT_DIG
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#undef DBL_MANT_DIG
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#undef LDBL_MANT_DIG
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#undef FLT_DIG
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#undef DBL_DIG
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#undef LDBL_DIG
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#undef FLT_MIN_EXP
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#undef DBL_MIN_EXP
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#undef LDBL_MIN_EXP
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#undef FLT_MIN_10_EXP
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#undef DBL_MIN_10_EXP
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#undef LDBL_MIN_10_EXP
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#undef FLT_MAX_EXP
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#undef DBL_MAX_EXP
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#undef LDBL_MAX_EXP
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#undef FLT_MAX_10_EXP
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#undef DBL_MAX_10_EXP
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#undef LDBL_MAX_10_EXP
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#undef FLT_MAX
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#undef DBL_MAX
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#undef LDBL_MAX
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#undef FLT_EPSILON
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#undef DBL_EPSILON
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#undef LDBL_EPSILON
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#undef FLT_MIN
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#undef DBL_MIN
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#undef LDBL_MIN
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#if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__)
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# undef DECIMAL_DIG
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#endif
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#if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__)
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# undef FLT_HAS_SUBNORM
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# undef DBL_HAS_SUBNORM
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# undef LDBL_HAS_SUBNORM
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# undef FLT_TRUE_MIN
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# undef DBL_TRUE_MIN
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# undef LDBL_TRUE_MIN
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# undef FLT_DECIMAL_DIG
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# undef DBL_DECIMAL_DIG
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# undef LDBL_DECIMAL_DIG
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#endif
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/* Characteristics of floating point types, C99 5.2.4.2.2 */
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#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
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#define FLT_ROUNDS (__builtin_flt_rounds())
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#define FLT_RADIX __FLT_RADIX__
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#define FLT_MANT_DIG __FLT_MANT_DIG__
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#define DBL_MANT_DIG __DBL_MANT_DIG__
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#define LDBL_MANT_DIG __LDBL_MANT_DIG__
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#define FLT_DIG __FLT_DIG__
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#define DBL_DIG __DBL_DIG__
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#define LDBL_DIG __LDBL_DIG__
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#define FLT_MIN_EXP __FLT_MIN_EXP__
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#define DBL_MIN_EXP __DBL_MIN_EXP__
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#define LDBL_MIN_EXP __LDBL_MIN_EXP__
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#define FLT_MIN_10_EXP __FLT_MIN_10_EXP__
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#define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
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#define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__
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#define FLT_MAX_EXP __FLT_MAX_EXP__
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#define DBL_MAX_EXP __DBL_MAX_EXP__
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#define LDBL_MAX_EXP __LDBL_MAX_EXP__
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#define FLT_MAX_10_EXP __FLT_MAX_10_EXP__
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#define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
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#define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
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#define FLT_MAX __FLT_MAX__
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#define DBL_MAX __DBL_MAX__
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#define LDBL_MAX __LDBL_MAX__
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#define FLT_EPSILON __FLT_EPSILON__
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#define DBL_EPSILON __DBL_EPSILON__
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#define LDBL_EPSILON __LDBL_EPSILON__
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#define FLT_MIN __FLT_MIN__
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#define DBL_MIN __DBL_MIN__
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#define LDBL_MIN __LDBL_MIN__
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#if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__)
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# define DECIMAL_DIG __DECIMAL_DIG__
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#endif
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#if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__)
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# if defined __arm__ /* On 32-bit arm, denorms are not supported. */
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# define FLT_HAS_SUBNORM 0
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# define DBL_HAS_SUBNORM 0
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# define LDBL_HAS_SUBNORM 0
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# define FLT_TRUE_MIN __FLT_MIN__
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# define DBL_TRUE_MIN __DBL_MIN__
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# define LDBL_TRUE_MIN __LDBL_MIN__
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# else /* All Apple platforms except 32-bit arm have denorms. */
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# define FLT_HAS_SUBNORM 1
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# define DBL_HAS_SUBNORM 1
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# define LDBL_HAS_SUBNORM 1
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# define FLT_TRUE_MIN __FLT_DENORM_MIN__
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# define DBL_TRUE_MIN __DBL_DENORM_MIN__
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# define LDBL_TRUE_MIN __LDBL_DENORM_MIN__
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# endif
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# define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__
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# define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__
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# define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__
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#endif
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#endif /* __FLOAT_H */
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