--- /dev/null
+/* Decimal number arithmetic module header for the decNumber C Library.
+ Copyright (C) 2005, 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/>. */
+
+/* ------------------------------------------------------------------ */
+/* Decimal Number arithmetic module header */
+/* ------------------------------------------------------------------ */
+
+#if !defined(DECNUMBER)
+ #define DECNUMBER
+ #define DECNAME "decNumber" /* Short name */
+ #define DECFULLNAME "Decimal Number Module" /* Verbose name */
+ #define DECAUTHOR "Mike Cowlishaw" /* Who to blame */
+
+ #if !defined(DECCONTEXT)
+ #include "decContext.h"
+ #endif
+
+ /* Bit settings for decNumber.bits */
+ #define DECNEG 0x80 /* Sign; 1=negative, 0=positive or zero */
+ #define DECINF 0x40 /* 1=Infinity */
+ #define DECNAN 0x20 /* 1=NaN */
+ #define DECSNAN 0x10 /* 1=sNaN */
+ /* The remaining bits are reserved; they must be 0 */
+ #define DECSPECIAL (DECINF|DECNAN|DECSNAN) /* any special value */
+
+ /* Define the decNumber data structure. The size and shape of the */
+ /* units array in the structure is determined by the following */
+ /* constant. This must not be changed without recompiling the */
+ /* decNumber library modules. */
+
+ #define DECDPUN 3 /* DECimal Digits Per UNit [must be >0 */
+ /* and <10; 3 or powers of 2 are best]. */
+
+ /* DECNUMDIGITS is the default number of digits that can be held in */
+ /* the structure. If undefined, 1 is assumed and it is assumed */
+ /* that the structure will be immediately followed by extra space, */
+ /* as required. DECNUMDIGITS is always >0. */
+ #if !defined(DECNUMDIGITS)
+ #define DECNUMDIGITS 1
+ #endif
+
+ /* The size (integer data type) of each unit is determined by the */
+ /* number of digits it will hold. */
+ #if DECDPUN<=2
+ #define decNumberUnit uint8_t
+ #elif DECDPUN<=4
+ #define decNumberUnit uint16_t
+ #else
+ #define decNumberUnit uint32_t
+ #endif
+ /* The number of units needed is ceil(DECNUMDIGITS/DECDPUN) */
+ #define DECNUMUNITS ((DECNUMDIGITS+DECDPUN-1)/DECDPUN)
+
+ /* The data structure... */
+ typedef struct {
+ int32_t digits; /* Count of digits in the coefficient; >0 */
+ int32_t exponent; /* Unadjusted exponent, unbiased, in */
+ /* range: -1999999997 through 999999999 */
+ uint8_t bits; /* Indicator bits (see above) */
+ /* Coefficient, from least significant unit */
+ decNumberUnit lsu[DECNUMUNITS];
+ } decNumber;
+
+ /* Notes: */
+ /* 1. If digits is > DECDPUN then there will one or more */
+ /* decNumberUnits immediately following the first element of lsu.*/
+ /* These contain the remaining (more significant) digits of the */
+ /* number, and may be in the lsu array, or may be guaranteed by */
+ /* some other mechanism (such as being contained in another */
+ /* structure, or being overlaid on dynamically allocated */
+ /* storage). */
+ /* */
+ /* Each integer of the coefficient (except potentially the last) */
+ /* contains DECDPUN digits (e.g., a value in the range 0 through */
+ /* 99999999 if DECDPUN is 8, or 0 through 999 if DECDPUN is 3). */
+ /* */
+ /* 2. A decNumber converted to a string may need up to digits+14 */
+ /* characters. The worst cases (non-exponential and exponential */
+ /* formats) are -0.00000{9...}# and -9.{9...}E+999999999# */
+ /* (where # is '\0') */
+
+
+ /* ---------------------------------------------------------------- */
+ /* decNumber public functions and macros */
+ /* ---------------------------------------------------------------- */
+
+ #include "decNumberSymbols.h"
+
+ /* Conversions */
+ decNumber * decNumberFromInt32(decNumber *, int32_t);
+ decNumber * decNumberFromUInt32(decNumber *, uint32_t);
+ decNumber * decNumberFromString(decNumber *, const char *, decContext *);
+ char * decNumberToString(const decNumber *, char *);
+ char * decNumberToEngString(const decNumber *, char *);
+ uint32_t decNumberToUInt32(const decNumber *, decContext *);
+ int32_t decNumberToInt32(const decNumber *, decContext *);
+ uint8_t * decNumberGetBCD(const decNumber *, uint8_t *);
+ decNumber * decNumberSetBCD(decNumber *, const uint8_t *, uint32_t);
+
+ /* Operators and elementary functions */
+ decNumber * decNumberAbs(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberAdd(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberAnd(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberCompare(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberCompareSignal(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberCompareTotal(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberCompareTotalMag(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberDivide(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberDivideInteger(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberExp(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberFMA(decNumber *, const decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberInvert(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberLn(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberLogB(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberLog10(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMax(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMaxMag(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMin(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMinMag(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMinus(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberMultiply(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberNormalize(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberOr(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberPlus(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberPower(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberQuantize(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberReduce(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberRemainder(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberRemainderNear(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberRescale(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberRotate(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberSameQuantum(decNumber *, const decNumber *, const decNumber *);
+ decNumber * decNumberScaleB(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberShift(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberSquareRoot(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberSubtract(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberToIntegralExact(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberToIntegralValue(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberXor(decNumber *, const decNumber *, const decNumber *, decContext *);
+
+ /* Utilities */
+ enum decClass decNumberClass(const decNumber *, decContext *);
+ const char * decNumberClassToString(enum decClass);
+ decNumber * decNumberCopy(decNumber *, const decNumber *);
+ decNumber * decNumberCopyAbs(decNumber *, const decNumber *);
+ decNumber * decNumberCopyNegate(decNumber *, const decNumber *);
+ decNumber * decNumberCopySign(decNumber *, const decNumber *, const decNumber *);
+ decNumber * decNumberNextMinus(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberNextPlus(decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberNextToward(decNumber *, const decNumber *, const decNumber *, decContext *);
+ decNumber * decNumberTrim(decNumber *);
+ const char * decNumberVersion(void);
+ decNumber * decNumberZero(decNumber *);
+
+ /* Functions for testing decNumbers (normality depends on context) */
+ int32_t decNumberIsNormal(const decNumber *, decContext *);
+ int32_t decNumberIsSubnormal(const decNumber *, decContext *);
+
+ /* Macros for testing decNumber *dn */
+ #define decNumberIsCanonical(dn) (1) /* All decNumbers are saintly */
+ #define decNumberIsFinite(dn) (((dn)->bits&DECSPECIAL)==0)
+ #define decNumberIsInfinite(dn) (((dn)->bits&DECINF)!=0)
+ #define decNumberIsNaN(dn) (((dn)->bits&(DECNAN|DECSNAN))!=0)
+ #define decNumberIsNegative(dn) (((dn)->bits&DECNEG)!=0)
+ #define decNumberIsQNaN(dn) (((dn)->bits&(DECNAN))!=0)
+ #define decNumberIsSNaN(dn) (((dn)->bits&(DECSNAN))!=0)
+ #define decNumberIsSpecial(dn) (((dn)->bits&DECSPECIAL)!=0)
+ #define decNumberIsZero(dn) (*(dn)->lsu==0 \
+ && (dn)->digits==1 \
+ && (((dn)->bits&DECSPECIAL)==0))
+ #define decNumberRadix(dn) (10)
+
+#endif
projects / msp430-gcc.git / blobdiff