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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libdecnumber/] [decQuad.h] - Blame information for rev 753

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1 731 jeremybenn 
/* decQuad 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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/* decQuad.h -- Decimal 128-bit format module header                  */
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/* ------------------------------------------------------------------ */
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/* This include file is always included by decSingle and decDouble,   */
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/* and therefore also holds useful constants used by all three.       */
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#if !defined(DECQUAD)
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  #define DECQUAD
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  #define DECQUADNAME         "decimalQuad"           /* Short name   */
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  #define DECQUADTITLE        "Decimal 128-bit datum" /* Verbose name */
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  #define DECQUADAUTHOR       "Mike Cowlishaw"        /* Who to blame */
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  /* parameters for decQuads */
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  #define DECQUAD_Bytes    16      /* length                          */
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  #define DECQUAD_Pmax     34      /* maximum precision (digits)      */
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  #define DECQUAD_Emin  -6143      /* minimum adjusted exponent       */
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  #define DECQUAD_Emax   6144      /* maximum adjusted exponent       */
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  #define DECQUAD_EmaxD     4      /* maximum exponent digits         */
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  #define DECQUAD_Bias   6176      /* bias for the exponent           */
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  #define DECQUAD_String   43      /* maximum string length, +1       */
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  #define DECQUAD_EconL    12      /* exponent continuation length    */
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  #define DECQUAD_Declets  11      /* count of declets                */
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  /* highest biased exponent (Elimit-1) */
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  #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1))
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  /* Required include                                                 */
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  #include "decContext.h"
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  /* The decQuad decimal 128-bit type, accessible by all sizes */
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  typedef union {
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    uint8_t   bytes[DECQUAD_Bytes];     /* fields: 1, 5, 12, 110 bits */
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    uint16_t shorts[DECQUAD_Bytes/2];
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    uint32_t  words[DECQUAD_Bytes/4];
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    #if DECUSE64
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    uint64_t  longs[DECQUAD_Bytes/8];
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    #endif
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    } decQuad;
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  /* ---------------------------------------------------------------- */
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  /* Shared constants                                                 */
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  /* ---------------------------------------------------------------- */
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  /* sign and special values [top 32-bits; last two bits are don't-care
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     for Infinity on input, last bit don't-care for NaNs] */
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  #define DECFLOAT_Sign  0x80000000     /* 1 00000 00 Sign */
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  #define DECFLOAT_NaN   0x7c000000     /* 0 11111 00 NaN generic */
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  #define DECFLOAT_qNaN  0x7c000000     /* 0 11111 00 qNaN */
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  #define DECFLOAT_sNaN  0x7e000000     /* 0 11111 10 sNaN */
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  #define DECFLOAT_Inf   0x78000000     /* 0 11110 00 Infinity */
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  #define DECFLOAT_MinSp 0x78000000     /* minimum special value */
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                                        /* [specials are all >=MinSp] */
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  /* Sign nibble constants                                            */
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  #if !defined(DECPPLUSALT)
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    #define DECPPLUSALT  0x0A /* alternate plus  nibble               */
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    #define DECPMINUSALT 0x0B /* alternate minus nibble               */
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    #define DECPPLUS     0x0C /* preferred plus  nibble               */
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    #define DECPMINUS    0x0D /* preferred minus nibble               */
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    #define DECPPLUSALT2 0x0E /* alternate plus  nibble               */
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    #define DECPUNSIGNED 0x0F /* alternate plus  nibble (unsigned)    */
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  #endif
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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 "decQuadSymbols.h"
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  /* Utilities and conversions, extractors, etc.) */
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  extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t);
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  extern decQuad * decQuadFromInt32(decQuad *, int32_t);
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  extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *);
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  extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *);
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  extern decQuad * decQuadFromString(decQuad *, const char *, decContext *);
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  extern decQuad * decQuadFromUInt32(decQuad *, uint32_t);
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  extern int32_t   decQuadGetCoefficient(const decQuad *, uint8_t *);
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  extern int32_t   decQuadGetExponent(const decQuad *);
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  extern decQuad * decQuadSetCoefficient(decQuad *, const uint8_t *, int32_t);
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  extern decQuad * decQuadSetExponent(decQuad *, decContext *, int32_t);
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  extern void      decQuadShow(const decQuad *, const char *);
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  extern int32_t   decQuadToBCD(const decQuad *, int32_t *, uint8_t *);
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  extern char    * decQuadToEngString(const decQuad *, char *);
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  extern int32_t   decQuadToInt32(const decQuad *, decContext *, enum rounding);
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  extern int32_t   decQuadToInt32Exact(const decQuad *, decContext *, enum rounding);
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  extern int32_t   decQuadToPacked(const decQuad *, int32_t *, uint8_t *);
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  extern char    * decQuadToString(const decQuad *, char *);
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  extern uint32_t  decQuadToUInt32(const decQuad *, decContext *, enum rounding);
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  extern uint32_t  decQuadToUInt32Exact(const decQuad *, decContext *, enum rounding);
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  extern decQuad * decQuadZero(decQuad *);
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  /* Computational (result is a decQuad) */
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  extern decQuad * decQuadAbs(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadAdd(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadAnd(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadDivide(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadDivideInteger(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadFMA(decQuad *, const decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadInvert(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadLogB(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMax(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMaxMag(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMin(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMinMag(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMinus(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadMultiply(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadNextMinus(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadNextPlus(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadNextToward(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadOr(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadPlus(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadQuantize(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadReduce(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadRemainder(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadRemainderNear(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadRotate(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadScaleB(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadShift(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadSubtract(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadToIntegralValue(decQuad *, const decQuad *, decContext *, enum rounding);
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  extern decQuad * decQuadToIntegralExact(decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadXor(decQuad *, const decQuad *, const decQuad *, decContext *);
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  /* Comparisons */
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  extern decQuad * decQuadCompare(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadCompareSignal(decQuad *, const decQuad *, const decQuad *, decContext *);
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  extern decQuad * decQuadCompareTotal(decQuad *, const decQuad *, const decQuad *);
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  extern decQuad * decQuadCompareTotalMag(decQuad *, const decQuad *, const decQuad *);
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  /* Copies */
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  extern decQuad * decQuadCanonical(decQuad *, const decQuad *);
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  extern decQuad * decQuadCopy(decQuad *, const decQuad *);
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  extern decQuad * decQuadCopyAbs(decQuad *, const decQuad *);
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  extern decQuad * decQuadCopyNegate(decQuad *, const decQuad *);
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  extern decQuad * decQuadCopySign(decQuad *, const decQuad *, const decQuad *);
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  /* Non-computational */
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  extern enum decClass decQuadClass(const decQuad *);
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  extern const char *  decQuadClassString(const decQuad *);
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  extern uint32_t      decQuadDigits(const decQuad *);
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  extern uint32_t      decQuadIsCanonical(const decQuad *);
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  extern uint32_t      decQuadIsFinite(const decQuad *);
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  extern uint32_t      decQuadIsInteger(const decQuad *);
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  extern uint32_t      decQuadIsInfinite(const decQuad *);
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  extern uint32_t      decQuadIsNaN(const decQuad *);
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  extern uint32_t      decQuadIsNormal(const decQuad *);
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  extern uint32_t      decQuadIsSignaling(const decQuad *);
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  extern uint32_t      decQuadIsSignalling(const decQuad *);
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  extern uint32_t      decQuadIsSigned(const decQuad *);
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  extern uint32_t      decQuadIsSubnormal(const decQuad *);
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  extern uint32_t      decQuadIsZero(const decQuad *);
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  extern uint32_t      decQuadRadix(const decQuad *);
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  extern uint32_t      decQuadSameQuantum(const decQuad *, const decQuad *);
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  extern const char *  decQuadVersion(void);
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  /* decNumber conversions; these are implemented as macros so as not  */
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  /* to force a dependency on decimal128 and decNumber in decQuad.     */
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  /* decQuadFromNumber returns a decimal128 * to avoid warnings.       */
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  #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn)
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  #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set)
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#endif

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