150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Decimal Number arithmetic module header */ 350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Copyright (c) IBM Corporation, 2000-2010. All rights reserved. */ 550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* This software is made available under the terms of the */ 750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ICU License -- ICU 1.8.1 and later. */ 850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* The description and User's Guide ("The decNumber C Library") for */ 1050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* this software is called decNumber.pdf. This document is */ 1150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* available, together with arithmetic and format specifications, */ 1250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* testcases, and Web links, on the General Decimal Arithmetic page. */ 1350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 1450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Please send comments, suggestions, and corrections to the author: */ 1550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* mfc@uk.ibm.com */ 1650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Mike Cowlishaw, IBM Fellow */ 1750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK */ 1850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 1950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 2050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Modified version, for use from within ICU. 2150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * Renamed public functions, to avoid an unwanted export of the 2250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * standard names from the ICU library. 2350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * 2450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * Use ICU's uprv_malloc() and uprv_free() 2550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * 2650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * Revert comment syntax to plain C 2750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * 2850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * Remove a few compiler warnings. 2950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho */ 3050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#if !defined(DECNUMBER) 3250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMBER 3350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNAME "decNumber" /* Short name */ 3450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECFULLNAME "Decimal Number Module" /* Verbose name */ 3550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECAUTHOR "Mike Cowlishaw" /* Who to blame */ 3650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECCONTEXT) 3850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #include "decContext.h" 3950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 4050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Bit settings for decNumber.bits */ 4250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNEG 0x80 /* Sign; 1=negative, 0=positive or zero */ 4350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECINF 0x40 /* 1=Infinity */ 4450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNAN 0x20 /* 1=NaN */ 4550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECSNAN 0x10 /* 1=sNaN */ 4650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* The remaining bits are reserved; they must be 0 */ 4750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECSPECIAL (DECINF|DECNAN|DECSNAN) /* any special value */ 4850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Define the decNumber data structure. The size and shape of the */ 5050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* units array in the structure is determined by the following */ 5150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* constant. This must not be changed without recompiling the */ 5250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decNumber library modules. */ 5350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 5450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* For ICU, use one digit per byte, to make it easier to emulate the 5550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * old DigitList interface on top of a decNumber 5650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho */ 5750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUN 1 /* DECimal Digits Per UNit [must be >0 */ 5850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* and <10; 3 or powers of 2 are best]. */ 5950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DECNUMDIGITS is the default number of digits that can be held in */ 6150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* the structure. If undefined, 1 is assumed and it is assumed */ 6250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* that the structure will be immediately followed by extra space, */ 6350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* as required. DECNUMDIGITS is always >0. */ 6450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECNUMDIGITS) 6550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMDIGITS 1 6650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 6750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* The size (integer data type) of each unit is determined by the */ 6950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* number of digits it will hold. */ 7050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECDPUN<=2 7150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberUnit uint8_t 7250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN<=4 7350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberUnit uint16_t 7450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #else 7550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberUnit uint32_t 7650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 7750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* The number of units needed is ceil(DECNUMDIGITS/DECDPUN) */ 7850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMUNITS ((DECNUMDIGITS+DECDPUN-1)/DECDPUN) 7950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 8050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* The data structure... */ 8150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho typedef struct { 8250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho int32_t digits; /* Count of digits in the coefficient; >0 */ 8350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho int32_t exponent; /* Unadjusted exponent, unbiased, in */ 8450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* range: -1999999997 through 999999999 */ 8550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uint8_t bits; /* Indicator bits (see above) */ 8650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Coefficient, from least significant unit */ 8750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho decNumberUnit lsu[DECNUMUNITS]; 8850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } decNumber; 8950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 9050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Notes: */ 9150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* 1. If digits is > DECDPUN then there will one or more */ 9250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decNumberUnits immediately following the first element of lsu.*/ 9350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* These contain the remaining (more significant) digits of the */ 9450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* number, and may be in the lsu array, or may be guaranteed by */ 9550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* some other mechanism (such as being contained in another */ 9650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* structure, or being overlaid on dynamically allocated */ 9750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* storage). */ 9850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* */ 9950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Each integer of the coefficient (except potentially the last) */ 10050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* contains DECDPUN digits (e.g., a value in the range 0 through */ 10150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* 99999999 if DECDPUN is 8, or 0 through 999 if DECDPUN is 3). */ 10250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* */ 10350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* 2. A decNumber converted to a string may need up to digits+14 */ 10450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* characters. The worst cases (non-exponential and exponential */ 10550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* formats) are -0.00000{9...}# and -9.{9...}E+999999999# */ 10650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* (where # is '\0') */ 10750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 10850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 10950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 11050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decNumber public functions and macros */ 11150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 11250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Conversions */ 11350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberFromInt32(decNumber *, int32_t); 11450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberFromUInt32(decNumber *, uint32_t); 11550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberFromString(decNumber *, const char *, decContext *); 11650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL char * U_EXPORT2 uprv_decNumberToString(const decNumber *, char *); 11750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL char * U_EXPORT2 uprv_decNumberToEngString(const decNumber *, char *); 11850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL uint32_t U_EXPORT2 uprv_decNumberToUInt32(const decNumber *, decContext *); 11950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL int32_t U_EXPORT2 uprv_decNumberToInt32(const decNumber *, decContext *); 12050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL uint8_t * U_EXPORT2 uprv_decNumberGetBCD(const decNumber *, uint8_t *); 12150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberSetBCD(decNumber *, const uint8_t *, uint32_t); 12250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 12350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Operators and elementary functions */ 12450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberAbs(decNumber *, const decNumber *, decContext *); 12550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberAdd(decNumber *, const decNumber *, const decNumber *, decContext *); 12650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberAnd(decNumber *, const decNumber *, const decNumber *, decContext *); 12750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCompare(decNumber *, const decNumber *, const decNumber *, decContext *); 12850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCompareSignal(decNumber *, const decNumber *, const decNumber *, decContext *); 12950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCompareTotal(decNumber *, const decNumber *, const decNumber *, decContext *); 13050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCompareTotalMag(decNumber *, const decNumber *, const decNumber *, decContext *); 13150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberDivide(decNumber *, const decNumber *, const decNumber *, decContext *); 13250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberDivideInteger(decNumber *, const decNumber *, const decNumber *, decContext *); 13350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberExp(decNumber *, const decNumber *, decContext *); 13450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberFMA(decNumber *, const decNumber *, const decNumber *, const decNumber *, decContext *); 13550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberInvert(decNumber *, const decNumber *, decContext *); 13650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberLn(decNumber *, const decNumber *, decContext *); 13750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberLogB(decNumber *, const decNumber *, decContext *); 13850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberLog10(decNumber *, const decNumber *, decContext *); 13950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMax(decNumber *, const decNumber *, const decNumber *, decContext *); 14050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMaxMag(decNumber *, const decNumber *, const decNumber *, decContext *); 14150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMin(decNumber *, const decNumber *, const decNumber *, decContext *); 14250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMinMag(decNumber *, const decNumber *, const decNumber *, decContext *); 14350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMinus(decNumber *, const decNumber *, decContext *); 14450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberMultiply(decNumber *, const decNumber *, const decNumber *, decContext *); 14550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberNormalize(decNumber *, const decNumber *, decContext *); 14650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberOr(decNumber *, const decNumber *, const decNumber *, decContext *); 14750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberPlus(decNumber *, const decNumber *, decContext *); 14850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberPower(decNumber *, const decNumber *, const decNumber *, decContext *); 14950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberQuantize(decNumber *, const decNumber *, const decNumber *, decContext *); 15050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberReduce(decNumber *, const decNumber *, decContext *); 15150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberRemainder(decNumber *, const decNumber *, const decNumber *, decContext *); 15250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberRemainderNear(decNumber *, const decNumber *, const decNumber *, decContext *); 15350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberRescale(decNumber *, const decNumber *, const decNumber *, decContext *); 15450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberRotate(decNumber *, const decNumber *, const decNumber *, decContext *); 15550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberSameQuantum(decNumber *, const decNumber *, const decNumber *); 15650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberScaleB(decNumber *, const decNumber *, const decNumber *, decContext *); 15750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberShift(decNumber *, const decNumber *, const decNumber *, decContext *); 15850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberSquareRoot(decNumber *, const decNumber *, decContext *); 15950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberSubtract(decNumber *, const decNumber *, const decNumber *, decContext *); 16050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberToIntegralExact(decNumber *, const decNumber *, decContext *); 16150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberToIntegralValue(decNumber *, const decNumber *, decContext *); 16250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberXor(decNumber *, const decNumber *, const decNumber *, decContext *); 16350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 16450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Utilities */ 16550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho enum decClass uprv_decNumberClass(const decNumber *, decContext *); 16650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL const char * U_EXPORT2 uprv_decNumberClassToString(enum decClass); 16750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCopy(decNumber *, const decNumber *); 16850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCopyAbs(decNumber *, const decNumber *); 16950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCopyNegate(decNumber *, const decNumber *); 17050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberCopySign(decNumber *, const decNumber *, const decNumber *); 17150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberNextMinus(decNumber *, const decNumber *, decContext *); 17250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberNextPlus(decNumber *, const decNumber *, decContext *); 17350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberNextToward(decNumber *, const decNumber *, const decNumber *, decContext *); 17450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberTrim(decNumber *); 17550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL const char * U_EXPORT2 uprv_decNumberVersion(void); 17650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL decNumber * U_EXPORT2 uprv_decNumberZero(decNumber *); 17750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 17850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Functions for testing decNumbers (normality depends on context) */ 17950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL int32_t U_EXPORT2 uprv_decNumberIsNormal(const decNumber *, decContext *); 18050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho U_INTERNAL int32_t U_EXPORT2 uprv_decNumberIsSubnormal(const decNumber *, decContext *); 18150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 18250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros for testing decNumber *dn */ 18350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsCanonical(dn) (1) /* All decNumbers are saintly */ 18450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsFinite(dn) (((dn)->bits&DECSPECIAL)==0) 18550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsInfinite(dn) (((dn)->bits&DECINF)!=0) 18650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsNaN(dn) (((dn)->bits&(DECNAN|DECSNAN))!=0) 18750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsNegative(dn) (((dn)->bits&DECNEG)!=0) 18850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsQNaN(dn) (((dn)->bits&(DECNAN))!=0) 18950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsSNaN(dn) (((dn)->bits&(DECSNAN))!=0) 19050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsSpecial(dn) (((dn)->bits&DECSPECIAL)!=0) 19150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberIsZero(dn) (*(dn)->lsu==0 \ 19250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (dn)->digits==1 \ 19350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (((dn)->bits&DECSPECIAL)==0)) 19450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define decNumberRadix(dn) (10) 19550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 19650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#endif 197