/* decDouble module header for the decNumber C Library.
  Copyright (C) 2007-2018 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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