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prodejna/qdecimal/decnumber/decQuad.h

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/* ------------------------------------------------------------------ */
/* decQuad.h -- Decimal 128-bit format module header */
/* ------------------------------------------------------------------ */
/* Copyright (c) IBM Corporation, 2000, 2010. All rights reserved. */
/* */
/* This software is made available under the terms of the */
/* ICU License -- ICU 1.8.1 and later. */
/* */
/* The description and User's Guide ("The decNumber C Library") for */
/* this software is included in the package as decNumber.pdf. This */
/* document is also available in HTML, together with specifications, */
/* testcases, and Web links, on the General Decimal Arithmetic page. */
/* */
/* Please send comments, suggestions, and corrections to the author: */
/* mfc@uk.ibm.com */
/* Mike Cowlishaw, IBM Fellow */
/* IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK */
/* ------------------------------------------------------------------ */
/* This include file is always included by decSingle and decDouble, */
/* and therefore also holds useful constants used by all three. */
#if !defined(DECQUAD)
#define DECQUAD
#define DECQUADNAME "decimalQuad" /* Short name */
#define DECQUADTITLE "Decimal 128-bit datum" /* Verbose name */
#define DECQUADAUTHOR "Mike Cowlishaw" /* Who to blame */
/* parameters for decQuads */
#define DECQUAD_Bytes 16 /* length */
#define DECQUAD_Pmax 34 /* maximum precision (digits) */
#define DECQUAD_Emin -6143 /* minimum adjusted exponent */
#define DECQUAD_Emax 6144 /* maximum adjusted exponent */
#define DECQUAD_EmaxD 4 /* maximum exponent digits */
#define DECQUAD_Bias 6176 /* bias for the exponent */
#define DECQUAD_String 43 /* maximum string length, +1 */
#define DECQUAD_EconL 12 /* exponent continuation length */
#define DECQUAD_Declets 11 /* count of declets */
/* highest biased exponent (Elimit-1) */
#define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1))
/* Required include */
#include "decContext.h"
/* The decQuad decimal 128-bit type, accessible by all sizes */
typedef union {
uint8_t bytes[DECQUAD_Bytes]; /* fields: 1, 5, 12, 110 bits */
uint16_t shorts[DECQUAD_Bytes/2];
uint32_t words[DECQUAD_Bytes/4];
#if DECUSE64
uint64_t longs[DECQUAD_Bytes/8];
#endif
} decQuad;
/* ---------------------------------------------------------------- */
/* Shared constants */
/* ---------------------------------------------------------------- */
/* sign and special values [top 32-bits; last two bits are don't-care
for Infinity on input, last bit don't-care for NaNs] */
#define DECFLOAT_Sign 0x80000000 /* 1 00000 00 Sign */
#define DECFLOAT_NaN 0x7c000000 /* 0 11111 00 NaN generic */
#define DECFLOAT_qNaN 0x7c000000 /* 0 11111 00 qNaN */
#define DECFLOAT_sNaN 0x7e000000 /* 0 11111 10 sNaN */
#define DECFLOAT_Inf 0x78000000 /* 0 11110 00 Infinity */
#define DECFLOAT_MinSp 0x78000000 /* minimum special value */
/* [specials are all >=MinSp] */
/* Sign nibble constants */
#if !defined(DECPPLUSALT)
#define DECPPLUSALT 0x0A /* alternate plus nibble */
#define DECPMINUSALT 0x0B /* alternate minus nibble */
#define DECPPLUS 0x0C /* preferred plus nibble */
#define DECPMINUS 0x0D /* preferred minus nibble */
#define DECPPLUSALT2 0x0E /* alternate plus nibble */
#define DECPUNSIGNED 0x0F /* alternate plus nibble (unsigned) */
#endif
/* ---------------------------------------------------------------- */
/* Routines -- implemented as decFloat routines in common files */
/* ---------------------------------------------------------------- */
/* Utilities and conversions, extractors, etc.) */
extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t);
extern decQuad * decQuadFromInt32(decQuad *, int32_t);
extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *);
extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *);
extern decQuad * decQuadFromString(decQuad *, const char *, decContext *);
extern decQuad * decQuadFromUInt32(decQuad *, uint32_t);
extern int32_t decQuadGetCoefficient(const decQuad *, uint8_t *);
extern int32_t decQuadGetExponent(const decQuad *);
extern decQuad * decQuadSetCoefficient(decQuad *, const uint8_t *, int32_t);
extern decQuad * decQuadSetExponent(decQuad *, decContext *, int32_t);
extern void decQuadShow(const decQuad *, const char *);
extern int32_t decQuadToBCD(const decQuad *, int32_t *, uint8_t *);
extern char * decQuadToEngString(const decQuad *, char *);
extern int32_t decQuadToInt32(const decQuad *, decContext *, enum rounding);
extern int32_t decQuadToInt32Exact(const decQuad *, decContext *, enum rounding);
extern int32_t decQuadToPacked(const decQuad *, int32_t *, uint8_t *);
extern char * decQuadToString(const decQuad *, char *);
extern uint32_t decQuadToUInt32(const decQuad *, decContext *, enum rounding);
extern uint32_t decQuadToUInt32Exact(const decQuad *, decContext *, enum rounding);
extern decQuad * decQuadZero(decQuad *);
/* Computational (result is a decQuad) */
extern decQuad * decQuadAbs(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadAdd(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadAnd(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadDivide(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadDivideInteger(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadFMA(decQuad *, const decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadInvert(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadLogB(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMax(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMaxMag(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMin(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMinMag(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMinus(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadMultiply(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadNextMinus(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadNextPlus(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadNextToward(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadOr(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadPlus(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadQuantize(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadReduce(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadRemainder(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadRemainderNear(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadRotate(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadScaleB(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadShift(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadSubtract(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadToIntegralValue(decQuad *, const decQuad *, decContext *, enum rounding);
extern decQuad * decQuadToIntegralExact(decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadXor(decQuad *, const decQuad *, const decQuad *, decContext *);
/* Comparisons */
extern decQuad * decQuadCompare(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadCompareSignal(decQuad *, const decQuad *, const decQuad *, decContext *);
extern decQuad * decQuadCompareTotal(decQuad *, const decQuad *, const decQuad *);
extern decQuad * decQuadCompareTotalMag(decQuad *, const decQuad *, const decQuad *);
/* Copies */
extern decQuad * decQuadCanonical(decQuad *, const decQuad *);
extern decQuad * decQuadCopy(decQuad *, const decQuad *);
extern decQuad * decQuadCopyAbs(decQuad *, const decQuad *);
extern decQuad * decQuadCopyNegate(decQuad *, const decQuad *);
extern decQuad * decQuadCopySign(decQuad *, const decQuad *, const decQuad *);
/* Non-computational */
extern enum decClass decQuadClass(const decQuad *);
extern const char * decQuadClassString(const decQuad *);
extern uint32_t decQuadDigits(const decQuad *);
extern uint32_t decQuadIsCanonical(const decQuad *);
extern uint32_t decQuadIsFinite(const decQuad *);
extern uint32_t decQuadIsInteger(const decQuad *);
extern uint32_t decQuadIsLogical(const decQuad *);
extern uint32_t decQuadIsInfinite(const decQuad *);
extern uint32_t decQuadIsNaN(const decQuad *);
extern uint32_t decQuadIsNegative(const decQuad *);
extern uint32_t decQuadIsNormal(const decQuad *);
extern uint32_t decQuadIsPositive(const decQuad *);
extern uint32_t decQuadIsSignaling(const decQuad *);
extern uint32_t decQuadIsSignalling(const decQuad *);
extern uint32_t decQuadIsSigned(const decQuad *);
extern uint32_t decQuadIsSubnormal(const decQuad *);
extern uint32_t decQuadIsZero(const decQuad *);
extern uint32_t decQuadRadix(const decQuad *);
extern uint32_t decQuadSameQuantum(const decQuad *, const decQuad *);
extern const char * decQuadVersion(void);
/* decNumber conversions; these are implemented as macros so as not */
/* to force a dependency on decimal128 and decNumber in decQuad. */
/* decQuadFromNumber returns a decimal128 * to avoid warnings. */
#define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn)
#define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set)
#endif
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