Mercurial > hg > CbC > CbC_gcc
annotate libdecnumber/decQuad.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | a06113de4d67 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* decQuad module header for the decNumber C Library. |
| 2 Copyright (C) 2007, 2009 Free Software Foundation, Inc. | |
| 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 | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 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 | |
| 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/>. */ | |
| 25 | |
| 26 /* ------------------------------------------------------------------ */ | |
| 27 /* decQuad.h -- Decimal 128-bit format module header */ | |
| 28 /* ------------------------------------------------------------------ */ | |
| 29 /* This include file is always included by decSingle and decDouble, */ | |
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30 /* and therefore also holds useful constants used by all three. */ |
| 0 | 31 |
| 32 #if !defined(DECQUAD) | |
| 33 #define DECQUAD | |
| 34 | |
| 35 #define DECQUADNAME "decimalQuad" /* Short name */ | |
| 36 #define DECQUADTITLE "Decimal 128-bit datum" /* Verbose name */ | |
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37 #define DECQUADAUTHOR "Mike Cowlishaw" /* Who to blame */ |
| 0 | 38 |
| 39 /* parameters for decQuads */ | |
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40 #define DECQUAD_Bytes 16 /* length */ |
| 0 | 41 #define DECQUAD_Pmax 34 /* maximum precision (digits) */ |
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42 #define DECQUAD_Emin -6143 /* minimum adjusted exponent */ |
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43 #define DECQUAD_Emax 6144 /* maximum adjusted exponent */ |
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44 #define DECQUAD_EmaxD 4 /* maximum exponent digits */ |
| 0 | 45 #define DECQUAD_Bias 6176 /* bias for the exponent */ |
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46 #define DECQUAD_String 43 /* maximum string length, +1 */ |
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47 #define DECQUAD_EconL 12 /* exponent continuation length */ |
| 0 | 48 #define DECQUAD_Declets 11 /* count of declets */ |
| 49 /* highest biased exponent (Elimit-1) */ | |
| 50 #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1)) | |
| 51 | |
| 52 /* Required include */ | |
| 53 #include "decContext.h" | |
| 54 | |
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55 /* The decQuad decimal 128-bit type, accessible by all sizes */ |
| 0 | 56 typedef union { |
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57 uint8_t bytes[DECQUAD_Bytes]; /* fields: 1, 5, 12, 110 bits */ |
| 0 | 58 uint16_t shorts[DECQUAD_Bytes/2]; |
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59 uint32_t words[DECQUAD_Bytes/4]; |
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60 #if DECUSE64 |
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61 uint64_t longs[DECQUAD_Bytes/8]; |
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62 #endif |
| 0 | 63 } decQuad; |
| 64 | |
| 65 /* ---------------------------------------------------------------- */ | |
| 66 /* Shared constants */ | |
| 67 /* ---------------------------------------------------------------- */ | |
| 68 | |
| 69 /* sign and special values [top 32-bits; last two bits are don't-care | |
| 70 for Infinity on input, last bit don't-care for NaNs] */ | |
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71 #define DECFLOAT_Sign 0x80000000 /* 1 00000 00 Sign */ |
| 0 | 72 #define DECFLOAT_NaN 0x7c000000 /* 0 11111 00 NaN generic */ |
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73 #define DECFLOAT_qNaN 0x7c000000 /* 0 11111 00 qNaN */ |
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74 #define DECFLOAT_sNaN 0x7e000000 /* 0 11111 10 sNaN */ |
| 0 | 75 #define DECFLOAT_Inf 0x78000000 /* 0 11110 00 Infinity */ |
| 76 #define DECFLOAT_MinSp 0x78000000 /* minimum special value */ | |
| 77 /* [specials are all >=MinSp] */ | |
| 78 /* Sign nibble constants */ | |
| 79 #if !defined(DECPPLUSALT) | |
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80 #define DECPPLUSALT 0x0A /* alternate plus nibble */ |
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81 #define DECPMINUSALT 0x0B /* alternate minus nibble */ |
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82 #define DECPPLUS 0x0C /* preferred plus nibble */ |
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83 #define DECPMINUS 0x0D /* preferred minus nibble */ |
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84 #define DECPPLUSALT2 0x0E /* alternate plus nibble */ |
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85 #define DECPUNSIGNED 0x0F /* alternate plus nibble (unsigned) */ |
| 0 | 86 #endif |
| 87 | |
| 88 /* ---------------------------------------------------------------- */ | |
| 89 /* Routines -- implemented as decFloat routines in common files */ | |
| 90 /* ---------------------------------------------------------------- */ | |
| 91 | |
| 92 #include "decQuadSymbols.h" | |
| 93 | |
| 94 /* Utilities and conversions, extractors, etc.) */ | |
| 95 extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t); | |
| 96 extern decQuad * decQuadFromInt32(decQuad *, int32_t); | |
| 97 extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *); | |
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98 extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *); |
| 0 | 99 extern decQuad * decQuadFromString(decQuad *, const char *, decContext *); |
| 100 extern decQuad * decQuadFromUInt32(decQuad *, uint32_t); | |
| 101 extern int32_t decQuadGetCoefficient(const decQuad *, uint8_t *); | |
| 102 extern int32_t decQuadGetExponent(const decQuad *); | |
| 103 extern decQuad * decQuadSetCoefficient(decQuad *, const uint8_t *, int32_t); | |
| 104 extern decQuad * decQuadSetExponent(decQuad *, decContext *, int32_t); | |
| 105 extern void decQuadShow(const decQuad *, const char *); | |
| 106 extern int32_t decQuadToBCD(const decQuad *, int32_t *, uint8_t *); | |
| 107 extern char * decQuadToEngString(const decQuad *, char *); | |
| 108 extern int32_t decQuadToInt32(const decQuad *, decContext *, enum rounding); | |
| 109 extern int32_t decQuadToInt32Exact(const decQuad *, decContext *, enum rounding); | |
| 110 extern int32_t decQuadToPacked(const decQuad *, int32_t *, uint8_t *); | |
| 111 extern char * decQuadToString(const decQuad *, char *); | |
| 112 extern uint32_t decQuadToUInt32(const decQuad *, decContext *, enum rounding); | |
| 113 extern uint32_t decQuadToUInt32Exact(const decQuad *, decContext *, enum rounding); | |
| 114 extern decQuad * decQuadZero(decQuad *); | |
| 115 | |
| 116 /* Computational (result is a decQuad) */ | |
| 117 extern decQuad * decQuadAbs(decQuad *, const decQuad *, decContext *); | |
| 118 extern decQuad * decQuadAdd(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 119 extern decQuad * decQuadAnd(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 120 extern decQuad * decQuadDivide(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 121 extern decQuad * decQuadDivideInteger(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 122 extern decQuad * decQuadFMA(decQuad *, const decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 123 extern decQuad * decQuadInvert(decQuad *, const decQuad *, decContext *); | |
| 124 extern decQuad * decQuadLogB(decQuad *, const decQuad *, decContext *); | |
| 125 extern decQuad * decQuadMax(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 126 extern decQuad * decQuadMaxMag(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 127 extern decQuad * decQuadMin(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 128 extern decQuad * decQuadMinMag(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 129 extern decQuad * decQuadMinus(decQuad *, const decQuad *, decContext *); | |
| 130 extern decQuad * decQuadMultiply(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 131 extern decQuad * decQuadNextMinus(decQuad *, const decQuad *, decContext *); | |
| 132 extern decQuad * decQuadNextPlus(decQuad *, const decQuad *, decContext *); | |
| 133 extern decQuad * decQuadNextToward(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 134 extern decQuad * decQuadOr(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 135 extern decQuad * decQuadPlus(decQuad *, const decQuad *, decContext *); | |
| 136 extern decQuad * decQuadQuantize(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 137 extern decQuad * decQuadReduce(decQuad *, const decQuad *, decContext *); | |
| 138 extern decQuad * decQuadRemainder(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 139 extern decQuad * decQuadRemainderNear(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 140 extern decQuad * decQuadRotate(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 141 extern decQuad * decQuadScaleB(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 142 extern decQuad * decQuadShift(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 143 extern decQuad * decQuadSubtract(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 144 extern decQuad * decQuadToIntegralValue(decQuad *, const decQuad *, decContext *, enum rounding); | |
| 145 extern decQuad * decQuadToIntegralExact(decQuad *, const decQuad *, decContext *); | |
| 146 extern decQuad * decQuadXor(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 147 | |
| 148 /* Comparisons */ | |
| 149 extern decQuad * decQuadCompare(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 150 extern decQuad * decQuadCompareSignal(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 151 extern decQuad * decQuadCompareTotal(decQuad *, const decQuad *, const decQuad *); | |
| 152 extern decQuad * decQuadCompareTotalMag(decQuad *, const decQuad *, const decQuad *); | |
| 153 | |
| 154 /* Copies */ | |
| 155 extern decQuad * decQuadCanonical(decQuad *, const decQuad *); | |
| 156 extern decQuad * decQuadCopy(decQuad *, const decQuad *); | |
| 157 extern decQuad * decQuadCopyAbs(decQuad *, const decQuad *); | |
| 158 extern decQuad * decQuadCopyNegate(decQuad *, const decQuad *); | |
| 159 extern decQuad * decQuadCopySign(decQuad *, const decQuad *, const decQuad *); | |
| 160 | |
| 161 /* Non-computational */ | |
| 162 extern enum decClass decQuadClass(const decQuad *); | |
| 163 extern const char * decQuadClassString(const decQuad *); | |
| 164 extern uint32_t decQuadDigits(const decQuad *); | |
| 165 extern uint32_t decQuadIsCanonical(const decQuad *); | |
| 166 extern uint32_t decQuadIsFinite(const decQuad *); | |
| 167 extern uint32_t decQuadIsInteger(const decQuad *); | |
| 168 extern uint32_t decQuadIsInfinite(const decQuad *); | |
| 169 extern uint32_t decQuadIsNaN(const decQuad *); | |
| 170 extern uint32_t decQuadIsNormal(const decQuad *); | |
| 171 extern uint32_t decQuadIsSignaling(const decQuad *); | |
| 172 extern uint32_t decQuadIsSignalling(const decQuad *); | |
| 173 extern uint32_t decQuadIsSigned(const decQuad *); | |
| 174 extern uint32_t decQuadIsSubnormal(const decQuad *); | |
| 175 extern uint32_t decQuadIsZero(const decQuad *); | |
| 176 extern uint32_t decQuadRadix(const decQuad *); | |
| 177 extern uint32_t decQuadSameQuantum(const decQuad *, const decQuad *); | |
| 178 extern const char * decQuadVersion(void); | |
| 179 | |
| 180 /* decNumber conversions; these are implemented as macros so as not */ | |
| 181 /* to force a dependency on decimal128 and decNumber in decQuad. */ | |
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182 /* decQuadFromNumber returns a decimal128 * to avoid warnings. */ |
| 0 | 183 #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn) |
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184 #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set) |
| 0 | 185 |
| 186 #endif |