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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libdecnumber/] [decDouble.h] - Blame information for rev 775

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1 731 jeremybenn
/* decDouble module header for the decNumber C Library.
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   Copyright (C) 2007, 2009 Free Software Foundation, Inc.
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   Contributed by IBM Corporation.  Author Mike Cowlishaw.
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   This file is part of GCC.
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   GCC is free software; you can redistribute it and/or modify it under
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   the terms of the GNU General Public License as published by the Free
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   Software Foundation; either version 3, or (at your option) any later
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   version.
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   GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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   WARRANTY; without even the implied warranty of MERCHANTABILITY or
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   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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   for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
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<http://www.gnu.org/licenses/>.  */
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/* ------------------------------------------------------------------ */
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/* decDouble.h -- Decimal 64-bit format module header                 */
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/* ------------------------------------------------------------------ */
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#if !defined(DECDOUBLE)
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  #define DECDOUBLE
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  #define DECDOUBLENAME       "decimalDouble"         /* Short name   */
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  #define DECDOUBLETITLE      "Decimal 64-bit datum"  /* Verbose name */
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  #define DECDOUBLEAUTHOR     "Mike Cowlishaw"        /* Who to blame */
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  /* parameters for decDoubles */
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  #define DECDOUBLE_Bytes   8      /* length                          */
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  #define DECDOUBLE_Pmax    16     /* maximum precision (digits)      */
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  #define DECDOUBLE_Emin   -383    /* minimum adjusted exponent       */
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  #define DECDOUBLE_Emax    384    /* maximum adjusted exponent       */
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  #define DECDOUBLE_EmaxD   3      /* maximum exponent digits         */
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  #define DECDOUBLE_Bias    398    /* bias for the exponent           */
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  #define DECDOUBLE_String  25     /* maximum string length, +1       */
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  #define DECDOUBLE_EconL   8      /* exponent continuation length    */
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  #define DECDOUBLE_Declets 5      /* count of declets                */
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  /* highest biased exponent (Elimit-1) */
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  #define DECDOUBLE_Ehigh (DECDOUBLE_Emax + DECDOUBLE_Bias - (DECDOUBLE_Pmax-1))
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  /* Required includes                                                */
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  #include "decContext.h"
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  #include "decQuad.h"
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  /* The decDouble decimal 64-bit type, accessible by all sizes */
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  typedef union {
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    uint8_t   bytes[DECDOUBLE_Bytes];   /* fields: 1, 5, 8, 50 bits */
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    uint16_t shorts[DECDOUBLE_Bytes/2];
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    uint32_t  words[DECDOUBLE_Bytes/4];
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    #if DECUSE64
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    uint64_t  longs[DECDOUBLE_Bytes/8];
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    #endif
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    } decDouble;
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  /* ---------------------------------------------------------------- */
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  /* Routines -- implemented as decFloat routines in common files     */
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  /* ---------------------------------------------------------------- */
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  #include "decDoubleSymbols.h"
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  /* Utilities and conversions, extractors, etc.) */
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  extern decDouble * decDoubleFromBCD(decDouble *, int32_t, const uint8_t *, int32_t);
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  extern decDouble * decDoubleFromInt32(decDouble *, int32_t);
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  extern decDouble * decDoubleFromPacked(decDouble *, int32_t, const uint8_t *);
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  extern decDouble * decDoubleFromPackedChecked(decDouble *, int32_t, const uint8_t *);
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  extern decDouble * decDoubleFromString(decDouble *, const char *, decContext *);
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  extern decDouble * decDoubleFromUInt32(decDouble *, uint32_t);
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  extern decDouble * decDoubleFromWider(decDouble *, const decQuad *, decContext *);
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  extern int32_t     decDoubleGetCoefficient(const decDouble *, uint8_t *);
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  extern int32_t     decDoubleGetExponent(const decDouble *);
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  extern decDouble * decDoubleSetCoefficient(decDouble *, const uint8_t *, int32_t);
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  extern decDouble * decDoubleSetExponent(decDouble *, decContext *, int32_t);
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  extern void        decDoubleShow(const decDouble *, const char *);
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  extern int32_t     decDoubleToBCD(const decDouble *, int32_t *, uint8_t *);
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  extern char      * decDoubleToEngString(const decDouble *, char *);
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  extern int32_t     decDoubleToInt32(const decDouble *, decContext *, enum rounding);
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  extern int32_t     decDoubleToInt32Exact(const decDouble *, decContext *, enum rounding);
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  extern int32_t     decDoubleToPacked(const decDouble *, int32_t *, uint8_t *);
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  extern char      * decDoubleToString(const decDouble *, char *);
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  extern uint32_t    decDoubleToUInt32(const decDouble *, decContext *, enum rounding);
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  extern uint32_t    decDoubleToUInt32Exact(const decDouble *, decContext *, enum rounding);
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  extern decQuad   * decDoubleToWider(const decDouble *, decQuad *);
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  extern decDouble * decDoubleZero(decDouble *);
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  /* Computational (result is a decDouble) */
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  extern decDouble * decDoubleAbs(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleAdd(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleAnd(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleDivide(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleDivideInteger(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleFMA(decDouble *, const decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleInvert(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleLogB(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMax(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMaxMag(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMin(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMinMag(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMinus(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleMultiply(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleNextMinus(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleNextPlus(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleNextToward(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleOr(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoublePlus(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleQuantize(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleReduce(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleRemainder(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleRemainderNear(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleRotate(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleScaleB(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleShift(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleSubtract(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleToIntegralValue(decDouble *, const decDouble *, decContext *, enum rounding);
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  extern decDouble * decDoubleToIntegralExact(decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleXor(decDouble *, const decDouble *, const decDouble *, decContext *);
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  /* Comparisons */
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  extern decDouble * decDoubleCompare(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleCompareSignal(decDouble *, const decDouble *, const decDouble *, decContext *);
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  extern decDouble * decDoubleCompareTotal(decDouble *, const decDouble *, const decDouble *);
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  extern decDouble * decDoubleCompareTotalMag(decDouble *, const decDouble *, const decDouble *);
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  /* Copies */
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  extern decDouble * decDoubleCanonical(decDouble *, const decDouble *);
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  extern decDouble * decDoubleCopy(decDouble *, const decDouble *);
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  extern decDouble * decDoubleCopyAbs(decDouble *, const decDouble *);
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  extern decDouble * decDoubleCopyNegate(decDouble *, const decDouble *);
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  extern decDouble * decDoubleCopySign(decDouble *, const decDouble *, const decDouble *);
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  /* Non-computational */
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  extern enum decClass decDoubleClass(const decDouble *);
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  extern const char *  decDoubleClassString(const decDouble *);
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  extern uint32_t      decDoubleDigits(const decDouble *);
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  extern uint32_t      decDoubleIsCanonical(const decDouble *);
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  extern uint32_t      decDoubleIsFinite(const decDouble *);
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  extern uint32_t      decDoubleIsInfinite(const decDouble *);
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  extern uint32_t      decDoubleIsInteger(const decDouble *);
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  extern uint32_t      decDoubleIsNaN(const decDouble *);
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  extern uint32_t      decDoubleIsNormal(const decDouble *);
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  extern uint32_t      decDoubleIsSignaling(const decDouble *);
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  extern uint32_t      decDoubleIsSignalling(const decDouble *);
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  extern uint32_t      decDoubleIsSigned(const decDouble *);
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  extern uint32_t      decDoubleIsSubnormal(const decDouble *);
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  extern uint32_t      decDoubleIsZero(const decDouble *);
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  extern uint32_t      decDoubleRadix(const decDouble *);
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  extern uint32_t      decDoubleSameQuantum(const decDouble *, const decDouble *);
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  extern const char *  decDoubleVersion(void);
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  /* decNumber conversions; these are implemented as macros so as not  */
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  /* to force a dependency on decimal64 and decNumber in decDouble.    */
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  /* decDoubleFromNumber returns a decimal64 * to avoid warnings.      */
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  #define decDoubleToNumber(dq, dn) decimal64ToNumber((decimal64 *)(dq), dn)
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  #define decDoubleFromNumber(dq, dn, set) decimal64FromNumber((decimal64 *)(dq), dn, set)
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#endif

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