1  /** @file


2  * IPRT / NoCRT  Our minimal float.h.


3  */


4 


5  /*


6  * Copyright (C) 20222023 Oracle and/or its affiliates.


7  *


8  * This file is part of VirtualBox base platform packages, as


9  * available from https://www.virtualbox.org.


10  *


11  * This program is free software; you can redistribute it and/or


12  * modify it under the terms of the GNU General Public License


13  * as published by the Free Software Foundation, in version 3 of the


14  * License.


15  *


16  * This program is distributed in the hope that it will be useful, but


17  * WITHOUT ANY WARRANTY; without even the implied warranty of


18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU


19  * General Public License for more details.


20  *


21  * You should have received a copy of the GNU General Public License


22  * along with this program; if not, see <https://www.gnu.org/licenses>.


23  *


24  * The contents of this file may alternatively be used under the terms


25  * of the Common Development and Distribution License Version 1.0


26  * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included


27  * in the VirtualBox distribution, in which case the provisions of the


28  * CDDL are applicable instead of those of the GPL.


29  *


30  * You may elect to license modified versions of this file under the


31  * terms and conditions of either the GPL or the CDDL or both.


32  *


33  * SPDXLicenseIdentifier: GPL3.0only OR CDDL1.0


34  */


35 


36  #ifndef IPRT_INCLUDED_nocrt_float_h


37  #define IPRT_INCLUDED_nocrt_float_h


38  #ifndef RT_WITHOUT_PRAGMA_ONCE


39  # pragma once


40  #endif


41 


42  #include <iprt/types.h>


43 


44  /*


45  * Common.


46  */


47  #define FLT_RADIX 2


48 


49 


50  /*


51  * float


52  */


53  #if defined(RT_ARCH_X86)  defined(RT_ARCH_AMD64)  defined(RT_ARCH_ARM64)


54 


55  # define FLT_MAX (3.40282347E+38F)


56  # define FLT_MIN (1.17549435E38F)


57  # define FLT_TRUE_MIN (1.40129846E45F)


58  # define FLT_MAX_EXP (128)


59  # define FLT_MIN_EXP (125)


60  # define FLT_MAX_10_EXP (38)


61  # define FLT_MIN_10_EXP (37)


62  # define FLT_EPSILON (1.192092896E07F)


63  # define FLT_DIG (6)


64  # define FLT_DECIMAL_DIG (9)


65  # define FLT_MANT_DIG (24)


66  # define FLT_HAS_SUBNORM (1)


67 


68  #endif


69 


70  /*


71  * double


72  */


73  #if defined(RT_ARCH_X86)  defined(RT_ARCH_AMD64)  defined(RT_ARCH_ARM64)


74 


75  # ifdef _MSC_VER


76  # define DBL_MAX (1.7976931348623158E+308)


77  # else


78  # define DBL_MAX (1.7976931348623157E+308)


79  # endif


80  # define DBL_MIN (2.2250738585072014E308)


81  # define DBL_TRUE_MIN (4.9406564584124654E324)


82  # define DBL_MAX_EXP (1024)


83  # define DBL_MIN_EXP (1021)


84  # define DBL_MAX_10_EXP (308)


85  # define DBL_MIN_10_EXP (307)


86  # define DBL_EPSILON (2.2204460492503131E16)


87  # define DBL_DIG (15)


88  # define DBL_DECIMAL_DIG (17)


89  # define DBL_MANT_DIG (53)


90  # define DBL_HAS_SUBNORM (1)


91 


92  #endif


93 


94  /*


95  * long double


96  */


97  #if ((defined(RT_ARCH_X86)  defined(RT_ARCH_AMD64)) && defined(RT_OS_WINDOWS))  defined(RT_ARCH_ARM64) /*?*/


98 


99  # define LDBL_MAX DBL_MAX


100  # define LDBL_MIN DBL_MIN


101  # define LDBL_TRUE_MIN DBL_TRUE_MIN


102  # define LDBL_MAX_EXP DBL_MAX_EXP


103  # define LDBL_MIN_EXP DBL_MIN_EXP


104  # define LDBL_MAX_10_EXP DBL_MAX_10_EXP


105  # define LDBL_MIN_10_EXP DBL_MIN_10_EXP


106  # define LDBL_EPSILON DBL_EPSILON


107  # define LDBL_DIG DBL_DIG


108  # define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG


109  # define LDBL_MANT_DIG DBL_MANT_DIG


110  # define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM


111 


112  #elif defined(RT_ARCH_X86)  defined(RT_ARCH_AMD64)


113 


114  # define LDBL_MAX (1.1897314953572317650E+4932L)


115  # define LDBL_MIN (3.3621031431120935063E4932L)


116  # define LDBL_TRUE_MIN (3.6451995318824746025E4951L)


117  # define LDBL_MAX_EXP (16381)


118  # define LDBL_MIN_EXP (16384)


119  # define LDBL_MAX_10_EXP (4932)


120  # define LDBL_MIN_10_EXP (4931)


121  # define LDBL_EPSILON (1.0842021724855044340E19L)


122  # define LDBL_DIG (18)


123  # define LDBL_DECIMAL_DIG (21)


124  # define LDBL_MANT_DIG (64)


125  # define LDBL_HAS_SUBNORM (1)


126 


127  #endif


128 


129 


130  #endif /* !IPRT_INCLUDED_nocrt_float_h */


131 

