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