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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [libdecnumber/] [decDouble.h] - Rev 308
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/* decDouble module header for the decNumber C Library. Copyright (C) 2007 Free Software Foundation, Inc. Contributed by IBM Corporation. Author Mike Cowlishaw. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. In addition to the permissions in the GNU General Public License, the Free Software Foundation gives you unlimited permission to link the compiled version of this file into combinations with other programs, and to distribute those combinations without any restriction coming from the use of this file. (The General Public License restrictions do apply in other respects; for example, they cover modification of the file, and distribution when not linked into a combine executable.) GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* ------------------------------------------------------------------ */ /* decDouble.h -- Decimal 64-bit format module header */ /* ------------------------------------------------------------------ */ /* Please see decFloats.h for an overview and documentation details. */ /* ------------------------------------------------------------------ */ #if !defined(DECDOUBLE) #define DECDOUBLE #define DECDOUBLENAME "decimalDouble" /* Short name */ #define DECDOUBLETITLE "Decimal 64-bit datum" /* Verbose name */ #define DECDOUBLEAUTHOR "Mike Cowlishaw" /* Who to blame */ /* parameters for decDoubles */ #define DECDOUBLE_Bytes 8 /* length */ #define DECDOUBLE_Pmax 16 /* maximum precision (digits) */ #define DECDOUBLE_Emin -383 /* minimum adjusted exponent */ #define DECDOUBLE_Emax 384 /* maximum adjusted exponent */ #define DECDOUBLE_EmaxD 3 /* maximum exponent digits */ #define DECDOUBLE_Bias 398 /* bias for the exponent */ #define DECDOUBLE_String 25 /* maximum string length, +1 */ #define DECDOUBLE_EconL 8 /* exponent continuation length */ #define DECDOUBLE_Declets 5 /* count of declets */ /* highest biased exponent (Elimit-1) */ #define DECDOUBLE_Ehigh (DECDOUBLE_Emax + DECDOUBLE_Bias - (DECDOUBLE_Pmax-1)) /* Required includes */ #include "decContext.h" #include "decQuad.h" /* The decDouble decimal 64-bit type, accessible by bytes */ typedef struct { uint8_t bytes[DECDOUBLE_Bytes]; /* fields: 1, 5, 8, 50 bits */ } decDouble; /* ---------------------------------------------------------------- */ /* Routines -- implemented as decFloat routines in common files */ /* ---------------------------------------------------------------- */ #include "decDoubleSymbols.h" /* Utilities and conversions, extractors, etc.) */ extern decDouble * decDoubleFromBCD(decDouble *, int32_t, const uint8_t *, int32_t); extern decDouble * decDoubleFromInt32(decDouble *, int32_t); extern decDouble * decDoubleFromPacked(decDouble *, int32_t, const uint8_t *); extern decDouble * decDoubleFromString(decDouble *, const char *, decContext *); extern decDouble * decDoubleFromUInt32(decDouble *, uint32_t); extern decDouble * decDoubleFromWider(decDouble *, const decQuad *, decContext *); extern int32_t decDoubleGetCoefficient(const decDouble *, uint8_t *); extern int32_t decDoubleGetExponent(const decDouble *); extern decDouble * decDoubleSetCoefficient(decDouble *, const uint8_t *, int32_t); extern decDouble * decDoubleSetExponent(decDouble *, decContext *, int32_t); extern void decDoubleShow(const decDouble *, const char *); extern int32_t decDoubleToBCD(const decDouble *, int32_t *, uint8_t *); extern char * decDoubleToEngString(const decDouble *, char *); extern int32_t decDoubleToInt32(const decDouble *, decContext *, enum rounding); extern int32_t decDoubleToInt32Exact(const decDouble *, decContext *, enum rounding); extern int32_t decDoubleToPacked(const decDouble *, int32_t *, uint8_t *); extern char * decDoubleToString(const decDouble *, char *); extern uint32_t decDoubleToUInt32(const decDouble *, decContext *, enum rounding); extern uint32_t decDoubleToUInt32Exact(const decDouble *, decContext *, enum rounding); extern decQuad * decDoubleToWider(const decDouble *, decQuad *); extern decDouble * decDoubleZero(decDouble *); /* Computational (result is a decDouble) */ extern decDouble * decDoubleAbs(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleAdd(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleAnd(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleDivide(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleDivideInteger(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleFMA(decDouble *, const decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleInvert(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleLogB(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMax(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMaxMag(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMin(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMinMag(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMinus(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleMultiply(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleNextMinus(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleNextPlus(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleNextToward(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleOr(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoublePlus(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleQuantize(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleReduce(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleRemainder(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleRemainderNear(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleRotate(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleScaleB(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleShift(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleSubtract(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleToIntegralValue(decDouble *, const decDouble *, decContext *, enum rounding); extern decDouble * decDoubleToIntegralExact(decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleXor(decDouble *, const decDouble *, const decDouble *, decContext *); /* Comparisons */ extern decDouble * decDoubleCompare(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleCompareSignal(decDouble *, const decDouble *, const decDouble *, decContext *); extern decDouble * decDoubleCompareTotal(decDouble *, const decDouble *, const decDouble *); extern decDouble * decDoubleCompareTotalMag(decDouble *, const decDouble *, const decDouble *); /* Copies */ extern decDouble * decDoubleCanonical(decDouble *, const decDouble *); extern decDouble * decDoubleCopy(decDouble *, const decDouble *); extern decDouble * decDoubleCopyAbs(decDouble *, const decDouble *); extern decDouble * decDoubleCopyNegate(decDouble *, const decDouble *); extern decDouble * decDoubleCopySign(decDouble *, const decDouble *, const decDouble *); /* Non-computational */ extern enum decClass decDoubleClass(const decDouble *); extern const char * decDoubleClassString(const decDouble *); extern uint32_t decDoubleDigits(const decDouble *); extern uint32_t decDoubleIsCanonical(const decDouble *); extern uint32_t decDoubleIsFinite(const decDouble *); extern uint32_t decDoubleIsInfinite(const decDouble *); extern uint32_t decDoubleIsInteger(const decDouble *); extern uint32_t decDoubleIsNaN(const decDouble *); extern uint32_t decDoubleIsNormal(const decDouble *); extern uint32_t decDoubleIsSignaling(const decDouble *); extern uint32_t decDoubleIsSignalling(const decDouble *); extern uint32_t decDoubleIsSigned(const decDouble *); extern uint32_t decDoubleIsSubnormal(const decDouble *); extern uint32_t decDoubleIsZero(const decDouble *); extern uint32_t decDoubleRadix(const decDouble *); extern uint32_t decDoubleSameQuantum(const decDouble *, const decDouble *); extern const char * decDoubleVersion(void); /* decNumber conversions; these are implemented as macros so as not */ /* to force a dependency on decimal64 and decNumber in decDouble. */ #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn) #define decDoubleFromNumber(dq, dn, set) (decDouble *)decimal64FromNumber((decimal64 *)(dq), dn, set) #endif
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