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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [libdecnumber/] [decDouble.h] - Rev 252
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/* decDouble module header for the decNumber C Library. Copyright (C) 2007, 2009 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 3, or (at your option) any later version. 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. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ /* ------------------------------------------------------------------ */ /* decDouble.h -- Decimal 64-bit format module header */ /* ------------------------------------------------------------------ */ #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 all sizes */ typedef union { uint8_t bytes[DECDOUBLE_Bytes]; /* fields: 1, 5, 8, 50 bits */ uint16_t shorts[DECDOUBLE_Bytes/2]; uint32_t words[DECDOUBLE_Bytes/4]; #if DECUSE64 uint64_t longs[DECDOUBLE_Bytes/8]; #endif } 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 * decDoubleFromPackedChecked(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. */ /* decDoubleFromNumber returns a decimal64 * to avoid warnings. */ #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn) #define decDoubleFromNumber(dq, dn, set) decimal64FromNumber((decimal64 *)(dq), dn, set) #endif
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