projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| f5bc1778 | 1 | /* decDouble module header for the decNumber C Library. |
| f57a3bca | 2 | Copyright (C) 2007-2018 Free Software Foundation, Inc. |
| f5bc1778 DJ |
3 | Contributed by IBM Corporation. Author Mike Cowlishaw. |
| 4 | ||
| 5 | This file is part of GCC. | |
| 6 | ||
| 7 | GCC is free software; you can redistribute it and/or modify it under | |
| 8 | the terms of the GNU General Public License as published by the Free | |
| 168a2f77 | 9 | Software Foundation; either version 3, or (at your option) any later |
| f5bc1778 DJ |
10 | version. |
| 11 | ||
| f5bc1778 DJ |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 | for more details. | |
| 16 | ||
| 168a2f77 DD |
17 | Under Section 7 of GPL version 3, you are granted additional |
| 18 | permissions described in the GCC Runtime Library Exception, version | |
| 19 | 3.1, as published by the Free Software Foundation. | |
| 20 | ||
| 21 | You should have received a copy of the GNU General Public License and | |
| 22 | a copy of the GCC Runtime Library Exception along with this program; | |
| 23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 | <http://www.gnu.org/licenses/>. */ | |
| f5bc1778 DJ |
25 | |
| 26 | /* ------------------------------------------------------------------ */ | |
| 27 | /* decDouble.h -- Decimal 64-bit format module header */ | |
| 28 | /* ------------------------------------------------------------------ */ | |
| f5bc1778 DJ |
29 | |
| 30 | #if !defined(DECDOUBLE) | |
| 31 | #define DECDOUBLE | |
| 32 | ||
| 87d32bb7 | 33 | #define DECDOUBLENAME "decimalDouble" /* Short name */ |
| f5bc1778 DJ |
34 | #define DECDOUBLETITLE "Decimal 64-bit datum" /* Verbose name */ |
| 35 | #define DECDOUBLEAUTHOR "Mike Cowlishaw" /* Who to blame */ | |
| 36 | ||
| 37 | /* parameters for decDoubles */ | |
| 38 | #define DECDOUBLE_Bytes 8 /* length */ | |
| 39 | #define DECDOUBLE_Pmax 16 /* maximum precision (digits) */ | |
| 87d32bb7 DD |
40 | #define DECDOUBLE_Emin -383 /* minimum adjusted exponent */ |
| 41 | #define DECDOUBLE_Emax 384 /* maximum adjusted exponent */ | |
| f5bc1778 | 42 | #define DECDOUBLE_EmaxD 3 /* maximum exponent digits */ |
| 87d32bb7 DD |
43 | #define DECDOUBLE_Bias 398 /* bias for the exponent */ |
| 44 | #define DECDOUBLE_String 25 /* maximum string length, +1 */ | |
| f5bc1778 DJ |
45 | #define DECDOUBLE_EconL 8 /* exponent continuation length */ |
| 46 | #define DECDOUBLE_Declets 5 /* count of declets */ | |
| 47 | /* highest biased exponent (Elimit-1) */ | |
| 48 | #define DECDOUBLE_Ehigh (DECDOUBLE_Emax + DECDOUBLE_Bias - (DECDOUBLE_Pmax-1)) | |
| 49 | ||
| 50 | /* Required includes */ | |
| 51 | #include "decContext.h" | |
| 52 | #include "decQuad.h" | |
| 53 | ||
| 87d32bb7 | 54 | /* The decDouble decimal 64-bit type, accessible by all sizes */ |
| aed1add3 | 55 | typedef union { |
| 87d32bb7 | 56 | uint8_t bytes[DECDOUBLE_Bytes]; /* fields: 1, 5, 8, 50 bits */ |
| aed1add3 | 57 | uint16_t shorts[DECDOUBLE_Bytes/2]; |
| 87d32bb7 DD |
58 | uint32_t words[DECDOUBLE_Bytes/4]; |
| 59 | #if DECUSE64 | |
| 60 | uint64_t longs[DECDOUBLE_Bytes/8]; | |
| 61 | #endif | |
| f5bc1778 DJ |
62 | } decDouble; |
| 63 | ||
| 64 | /* ---------------------------------------------------------------- */ | |
| 65 | /* Routines -- implemented as decFloat routines in common files */ | |
| 66 | /* ---------------------------------------------------------------- */ | |
| 67 | ||
| 68 | #include "decDoubleSymbols.h" | |
| 69 | ||
| 70 | /* Utilities and conversions, extractors, etc.) */ | |
| 71 | extern decDouble * decDoubleFromBCD(decDouble *, int32_t, const uint8_t *, int32_t); | |
| 72 | extern decDouble * decDoubleFromInt32(decDouble *, int32_t); | |
| 73 | extern decDouble * decDoubleFromPacked(decDouble *, int32_t, const uint8_t *); | |
| 87d32bb7 | 74 | extern decDouble * decDoubleFromPackedChecked(decDouble *, int32_t, const uint8_t *); |
| f5bc1778 DJ |
75 | extern decDouble * decDoubleFromString(decDouble *, const char *, decContext *); |
| 76 | extern decDouble * decDoubleFromUInt32(decDouble *, uint32_t); | |
| 77 | extern decDouble * decDoubleFromWider(decDouble *, const decQuad *, decContext *); | |
| 78 | extern int32_t decDoubleGetCoefficient(const decDouble *, uint8_t *); | |
| 79 | extern int32_t decDoubleGetExponent(const decDouble *); | |
| 80 | extern decDouble * decDoubleSetCoefficient(decDouble *, const uint8_t *, int32_t); | |
| 81 | extern decDouble * decDoubleSetExponent(decDouble *, decContext *, int32_t); | |
| 82 | extern void decDoubleShow(const decDouble *, const char *); | |
| 83 | extern int32_t decDoubleToBCD(const decDouble *, int32_t *, uint8_t *); | |
| 84 | extern char * decDoubleToEngString(const decDouble *, char *); | |
| 85 | extern int32_t decDoubleToInt32(const decDouble *, decContext *, enum rounding); | |
| 86 | extern int32_t decDoubleToInt32Exact(const decDouble *, decContext *, enum rounding); | |
| 87 | extern int32_t decDoubleToPacked(const decDouble *, int32_t *, uint8_t *); | |
| 88 | extern char * decDoubleToString(const decDouble *, char *); | |
| 89 | extern uint32_t decDoubleToUInt32(const decDouble *, decContext *, enum rounding); | |
| 90 | extern uint32_t decDoubleToUInt32Exact(const decDouble *, decContext *, enum rounding); | |
| 91 | extern decQuad * decDoubleToWider(const decDouble *, decQuad *); | |
| 92 | extern decDouble * decDoubleZero(decDouble *); | |
| 93 | ||
| 94 | /* Computational (result is a decDouble) */ | |
| 95 | extern decDouble * decDoubleAbs(decDouble *, const decDouble *, decContext *); | |
| 96 | extern decDouble * decDoubleAdd(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 97 | extern decDouble * decDoubleAnd(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 98 | extern decDouble * decDoubleDivide(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 99 | extern decDouble * decDoubleDivideInteger(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 100 | extern decDouble * decDoubleFMA(decDouble *, const decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 101 | extern decDouble * decDoubleInvert(decDouble *, const decDouble *, decContext *); | |
| 102 | extern decDouble * decDoubleLogB(decDouble *, const decDouble *, decContext *); | |
| 103 | extern decDouble * decDoubleMax(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 104 | extern decDouble * decDoubleMaxMag(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 105 | extern decDouble * decDoubleMin(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 106 | extern decDouble * decDoubleMinMag(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 107 | extern decDouble * decDoubleMinus(decDouble *, const decDouble *, decContext *); | |
| 108 | extern decDouble * decDoubleMultiply(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 109 | extern decDouble * decDoubleNextMinus(decDouble *, const decDouble *, decContext *); | |
| 110 | extern decDouble * decDoubleNextPlus(decDouble *, const decDouble *, decContext *); | |
| 111 | extern decDouble * decDoubleNextToward(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 112 | extern decDouble * decDoubleOr(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 113 | extern decDouble * decDoublePlus(decDouble *, const decDouble *, decContext *); | |
| 114 | extern decDouble * decDoubleQuantize(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 115 | extern decDouble * decDoubleReduce(decDouble *, const decDouble *, decContext *); | |
| 116 | extern decDouble * decDoubleRemainder(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 117 | extern decDouble * decDoubleRemainderNear(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 118 | extern decDouble * decDoubleRotate(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 119 | extern decDouble * decDoubleScaleB(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 120 | extern decDouble * decDoubleShift(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 121 | extern decDouble * decDoubleSubtract(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 122 | extern decDouble * decDoubleToIntegralValue(decDouble *, const decDouble *, decContext *, enum rounding); | |
| 123 | extern decDouble * decDoubleToIntegralExact(decDouble *, const decDouble *, decContext *); | |
| 124 | extern decDouble * decDoubleXor(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 125 | ||
| 126 | /* Comparisons */ | |
| 127 | extern decDouble * decDoubleCompare(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 128 | extern decDouble * decDoubleCompareSignal(decDouble *, const decDouble *, const decDouble *, decContext *); | |
| 129 | extern decDouble * decDoubleCompareTotal(decDouble *, const decDouble *, const decDouble *); | |
| 130 | extern decDouble * decDoubleCompareTotalMag(decDouble *, const decDouble *, const decDouble *); | |
| 131 | ||
| 132 | /* Copies */ | |
| 133 | extern decDouble * decDoubleCanonical(decDouble *, const decDouble *); | |
| 134 | extern decDouble * decDoubleCopy(decDouble *, const decDouble *); | |
| 135 | extern decDouble * decDoubleCopyAbs(decDouble *, const decDouble *); | |
| 136 | extern decDouble * decDoubleCopyNegate(decDouble *, const decDouble *); | |
| 137 | extern decDouble * decDoubleCopySign(decDouble *, const decDouble *, const decDouble *); | |
| 138 | ||
| 139 | /* Non-computational */ | |
| 140 | extern enum decClass decDoubleClass(const decDouble *); | |
| 141 | extern const char * decDoubleClassString(const decDouble *); | |
| 142 | extern uint32_t decDoubleDigits(const decDouble *); | |
| 143 | extern uint32_t decDoubleIsCanonical(const decDouble *); | |
| 144 | extern uint32_t decDoubleIsFinite(const decDouble *); | |
| 145 | extern uint32_t decDoubleIsInfinite(const decDouble *); | |
| 146 | extern uint32_t decDoubleIsInteger(const decDouble *); | |
| 147 | extern uint32_t decDoubleIsNaN(const decDouble *); | |
| 148 | extern uint32_t decDoubleIsNormal(const decDouble *); | |
| 149 | extern uint32_t decDoubleIsSignaling(const decDouble *); | |
| 150 | extern uint32_t decDoubleIsSignalling(const decDouble *); | |
| 151 | extern uint32_t decDoubleIsSigned(const decDouble *); | |
| 152 | extern uint32_t decDoubleIsSubnormal(const decDouble *); | |
| 153 | extern uint32_t decDoubleIsZero(const decDouble *); | |
| 154 | extern uint32_t decDoubleRadix(const decDouble *); | |
| 155 | extern uint32_t decDoubleSameQuantum(const decDouble *, const decDouble *); | |
| 156 | extern const char * decDoubleVersion(void); | |
| 157 | ||
| 158 | /* decNumber conversions; these are implemented as macros so as not */ | |
| 159 | /* to force a dependency on decimal64 and decNumber in decDouble. */ | |
| 87d32bb7 | 160 | /* decDoubleFromNumber returns a decimal64 * to avoid warnings. */ |
| f5bc1778 | 161 | #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn) |
| 87d32bb7 | 162 | #define decDoubleFromNumber(dq, dn, set) decimal64FromNumber((decimal64 *)(dq), dn, set) |
| f5bc1778 DJ |
163 | |
| 164 | #endif |