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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libdecnumber/decDouble.h
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diff --git a/libdecnumber/decDouble.h b/libdecnumber/decDouble.h
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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