CFBigNumber.h

   1 /*
   2  * Copyright (c) 2013 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*      CFBigNumber.h
  25         Copyright (c) 2012-2013, Apple Inc. All rights reserved.
  26 */
  27
  28 #if !defined(__COREFOUNDATION_CFBIGNUMBER__)
  29 #define __COREFOUNDATION_CFBIGNUMBER__ 1
  30
  31 #include <CoreFoundation/CFBase.h>
  32 #include <CoreFoundation/CFNumber.h>
  33
  34
  35 // Base 1 billion number: each digit represents 0 to 999999999
  36 typedef struct {
  37     uint32_t digits[5];
  38     int32_t sign:8;
  39     uint32_t __:24;
  40 } _CFBigNum;
  41
  42 void _CFBigNumInitWithInt8(_CFBigNum *r, int8_t inNum);
  43 void _CFBigNumInitWithInt16(_CFBigNum *r, int16_t inNum);
  44 void _CFBigNumInitWithInt32(_CFBigNum *r, int32_t inNum);
  45 void _CFBigNumInitWithInt64(_CFBigNum *r, int64_t inNum);
  46 #ifdef __LP64__
  47 void _CFBigNumInitWithInt128(_CFBigNum *r, __int128_t inNum);
  48 #endif
  49
  50 void _CFBigNumInitWithUInt8(_CFBigNum *r, uint8_t inNum);
  51 void _CFBigNumInitWithUInt16(_CFBigNum *r, uint16_t inNum);
  52 void _CFBigNumInitWithUInt32(_CFBigNum *r, uint32_t inNum);
  53 void _CFBigNumInitWithUInt64(_CFBigNum *r, uint64_t inNum);
  54 #ifdef __LP64__
  55 void _CFBigNumInitWithUInt128(_CFBigNum *r, __uint128_t inNum);
  56 #endif
  57
  58 int8_t  _CFBigNumGetInt8(const _CFBigNum *num);
  59 int16_t _CFBigNumGetInt16(const _CFBigNum *num);
  60 int32_t _CFBigNumGetInt32(const _CFBigNum *num);
  61 int64_t _CFBigNumGetInt64(const _CFBigNum *num);
  62 #ifdef __LP64__
  63 __int128_t _CFBigNumGetInt128(const _CFBigNum *num);
  64 #endif
  65
  66 uint8_t  _CFBigNumGetUInt8(const _CFBigNum *num);
  67 uint16_t _CFBigNumGetUInt16(const _CFBigNum *num);
  68 uint32_t _CFBigNumGetUInt32(const _CFBigNum *num);
  69 uint64_t _CFBigNumGetUInt64(const _CFBigNum *num);
  70 #ifdef __LP64__
  71 __uint128_t _CFBigNumGetUInt128(const _CFBigNum *num);
  72 #endif
  73
  74 void _CFBigNumInitWithCFNumber(_CFBigNum *r, CFNumberRef input);
  75 void _CFBigNumInitWithBytes(_CFBigNum *r, const void *bytes, CFNumberType type);
  76 CFNumberRef _CFNumberCreateWithBigNum(const _CFBigNum *input);
  77
  78
  79 CFComparisonResult _CFBigNumCompare(const _CFBigNum *a, const _CFBigNum *b);
  80
  81 void _CFBigNumNeg(_CFBigNum *r, const _CFBigNum *a);
  82 uint8_t _CFBigNumAdd(_CFBigNum *r, const _CFBigNum *a, const _CFBigNum *b);
  83 uint8_t _CFBigNumSub(_CFBigNum *r, const _CFBigNum *a, const _CFBigNum *b);
  84
  85
  86 void _CFBigNumToCString(const _CFBigNum *vp, Boolean leading_zeros, Boolean leading_plus, char *buffer, size_t buflen);
  87 void _CFBigNumFromCString(_CFBigNum *r, const char *string);
  88
  89 char *_CFBigNumCopyDescription(const _CFBigNum *num); // caller must free() returned ptr
  90
  91
  92 #endif /* ! __COREFOUNDATION_CFBIGNUMBER__ */
  93