service plugin and qdecimal library has been added
This commit is contained in:
Zdenek Jonak
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#ifndef QDECNUMBER_HH
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#define QDECNUMBER_HH
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/** \file QDecNumber.hh
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* Declarations for the class QDecNumber.
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*
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* (C) Copyright by Semih Cemiloglu
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* All rights reserved, see COPYRIGHT file for details.
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*
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* $Id$
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*
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*
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*/
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#include <QByteArray>
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#include <QMetaType>
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#include "QDecFwd.hh"
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#include "QDecContext.hh"
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// FORWARDS
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QT_BEGIN_NAMESPACE
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class QTextStream;
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QT_END_NAMESPACE
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/*!
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\class QDecNumber
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QDecNumber encapsulates decNumber and reimplements global functions
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that operates upon decNumber as member functions with the same name.
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decNumber module uses an arbitrary-precision decimal number representation
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designed for efficient computation in software and implements the
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arithmetic and logical operations, together with a number of conversions
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and utilities. Once a number is held as a decNumber, no further conversions
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are necessary to carry out arithmetic.
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The decNumber representation is variable-length and machine-dependent
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(for example, it contains integers which may be big-endian or little-endian).
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*/
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class QDECIMAL_EXPORT QDecNumber
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{
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// MEMBERS
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//! Embedded decNumber structure
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decNumber m_data;
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public:
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// TYPES
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typedef decNumber* decNumberPtr_t;
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enum {
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MaxStrSize = QDECMAXSTRSIZE
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};
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// CREATORS
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//! Default constructor
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QDecNumber() { decNumberZero(&m_data); }
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// Constructors using decNumber structure
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QDecNumber(const decNumber& d) : m_data(d) {}
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QDecNumber(const decNumber* p) : m_data(*p) {}
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// Conversion constructors using simple types
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QDecNumber(const char* str) { fromString(str); }
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// m_data must have space for the digits needed to represent
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// the value of val, which may need up to ten digits.
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QDecNumber(uint32_t val) { fromUInt32(val); }
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QDecNumber(int32_t val) { fromInt32(val); }
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QDecNumber(double d) { fromDouble(d); }
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// Conversion constructors using composite types
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QDecNumber(const QDecSingle& s);
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QDecNumber(const QDecDouble& d);
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QDecNumber(const QDecQuad& q);
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QDecNumber(const QDecPacked& p);
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//! Copy constructor
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QDecNumber(const QDecNumber& o)
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{ decNumberCopy(&m_data, &o.m_data); }
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//! Copy assignment
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QDecNumber& operator=(const QDecNumber& o)
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{ if(this != &o) decNumberCopy(&m_data, &o.m_data); return *this; }
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//! Type conversion operator to decNumber*
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operator decNumberPtr_t() { return &m_data; }
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// ACCESSORS
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const decNumber* data() const
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{ return &m_data; }
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// MODIFIERS
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decNumber* data()
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{ return &m_data; }
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// CONVERSIONS
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QDecNumber& fromBCD(QByteArray& bcd) {
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decNumberSetBCD(&m_data, (const uint8_t*)bcd.data(), bcd.size());
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return *this;
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}
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QDecNumber& fromDouble(double d);
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QDecNumber& fromInt32(int32_t val)
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{ decNumberFromInt32(&m_data, val); return *this; }
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QDecNumber& fromUInt32(uint32_t val)
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{ decNumberFromUInt32(&m_data, val); return *this; }
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QDecNumber& fromString(const char* str, QDecContext* c = 0)
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{ decNumberFromString(&m_data, str, CXT(c)); return *this; }
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QByteArray toBCD() const {
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QByteArray bcd(m_data.digits+1, '\0');
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decNumberGetBCD(&m_data, (uint8_t*)bcd.data());
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return bcd;
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}
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double toDouble() const;
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QByteArray toEngString() const {
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char str[MaxStrSize] = { 0 };
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return decNumberToEngString(&m_data, str);
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}
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QByteArray toString() const {
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char str[MaxStrSize] = { 0 };
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return decNumberToString(&m_data, str);
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}
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int32_t toInt32(QDecContext* c = 0) const
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{ return decNumberToInt32(&m_data, CXT(c)); }
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uint32_t toUInt32(QDecContext* c = 0) const
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{ return decNumberToUInt32(&m_data, CXT(c)); }
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// COMPUTATIONAL FUNCTIONS
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QDecNumber abs(QDecContext* c = 0) const
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{ decNumber n; return decNumberAbs(&n, &m_data, CXT(c)); }
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QDecNumber add(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberAdd(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber digitAnd(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberAnd(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber compare(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberCompare(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber compareSignal(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberCompareSignal(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber compareTotal(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberCompareTotal(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber compareTotalMag(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberCompareTotalMag(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber divide(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberDivide(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber divideInteger(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberDivideInteger(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber exp(QDecContext* c = 0) const
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{ decNumber n; return decNumberExp(&n, &m_data, CXT(c)); }
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QDecNumber fma(const QDecNumber& mo, const QDecNumber& ao,
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QDecContext* c = 0) const {
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decNumber n;
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return decNumberFMA(&n, &m_data, &mo.m_data, &ao.m_data, CXT(c));
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}
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QDecNumber invert(QDecContext* c = 0) const
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{ decNumber n; return decNumberInvert(&n, &m_data, CXT(c)); }
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QDecNumber ln(QDecContext* c = 0) const
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{ decNumber n; return decNumberLn(&n, &m_data, CXT(c)); }
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QDecNumber logB(QDecContext* c = 0) const
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{ decNumber n; return decNumberLogB(&n, &m_data, CXT(c)); }
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QDecNumber log10(QDecContext* c = 0) const
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{ decNumber n; return decNumberLog10(&n, &m_data, CXT(c)); }
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QDecNumber max(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberMax(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber maxMag(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberMaxMag(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber min(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberMin(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber minMag(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberMinMag(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber minus(QDecContext* c = 0) const
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{ decNumber n; return decNumberMinus(&n, &m_data, CXT(c)); }
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QDecNumber multiply(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberMultiply(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber nextMinus(QDecContext* c = 0)
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{ decNumber n; return decNumberNextMinus(&n, &m_data, CXT(c)); }
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QDecNumber nextPlus(QDecContext* c = 0)
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{ decNumber n; return decNumberNextPlus(&n, &m_data, CXT(c)); }
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QDecNumber nextToward(const QDecNumber& o, QDecContext* c = 0)
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{ decNumber n; return decNumberNextToward(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber normalize(QDecContext* c = 0) const
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{ decNumber n; return decNumberNormalize(&n, &m_data, CXT(c)); }
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QDecNumber digitOr(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberOr(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber plus(QDecContext* c = 0) const
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{ decNumber n; return decNumberPlus(&n, &m_data, CXT(c)); }
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QDecNumber power(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberPower(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber quantize(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberQuantize(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber reduce(QDecContext* c = 0) const
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{ decNumber n; return decNumberReduce(&n, &m_data, CXT(c)); }
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QDecNumber remainder(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberRemainder(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber remainderNear(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberRemainderNear(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber rescale(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberRescale(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber rotate(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberRotate(&n, &m_data, &o.m_data, CXT(c)); }
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bool sameQuantum(const QDecNumber& o) const {
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decNumber n;
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QDecNumber r = decNumberSameQuantum(&n, data(), o.data());
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return !r.isZero();
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}
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QDecNumber scaleB(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberScaleB(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber shift(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberShift(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber squareRoot(QDecContext* c = 0) const
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{ decNumber n; return decNumberSquareRoot(&n, &m_data, CXT(c)); }
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QDecNumber subtract(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberSubtract(&n, &m_data, &o.m_data, CXT(c)); }
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QDecNumber toIntegralExact(QDecContext* c = 0) const
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{ decNumber n; return decNumberToIntegralExact(&n, &m_data, CXT(c)); }
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QDecNumber toIntegralValue(QDecContext* c = 0) const
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{ decNumber n; return decNumberToIntegralValue(&n, &m_data, CXT(c)); }
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QDecNumber digitXor(const QDecNumber& o, QDecContext* c = 0) const
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{ decNumber n; return decNumberXor(&n, &m_data, &o.m_data, CXT(c)); }
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// TESTING FUNCTIONS
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bool isCanonical() const
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{ return decNumberIsCanonical(&m_data); }
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bool isFinite() const
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{ return decNumberIsFinite(&m_data); }
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bool isInfinite() const
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{ return decNumberIsInfinite(&m_data); }
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bool isNaN() const
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{ return decNumberIsNaN(&m_data); }
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bool isNegative() const
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{ return decNumberIsNegative(&m_data); }
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bool isQNaN() const
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{ return decNumberIsQNaN(&m_data); }
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bool isSNaN() const
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{ return decNumberIsSNaN(&m_data); }
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bool isSpecial() const
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{ return decNumberIsSpecial(&m_data); }
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bool isZero() const
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{ return decNumberIsZero(&m_data); }
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// TEST FUNCTIONS (CONTEXT DEPENDENT)
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bool isNormal(QDecContext* c = 0) const
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{ return decNumberIsNormal(&m_data, CXT(c)); }
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bool isSubnormal(QDecContext* c = 0) const
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{ return decNumberIsSubnormal(&m_data, CXT(c)); }
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// UTILITIES
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enum decClass toClass(QDecContext* c = 0) const
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{ return decNumberClass(&m_data, CXT(c)); }
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QDecNumber& copy(const QDecNumber& o)
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{ decNumberCopy(&m_data, &o.m_data); return *this; }
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QDecNumber& copyAbs(const QDecNumber& o)
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{ decNumberCopyAbs(&m_data, &o.m_data); return *this; }
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QDecNumber& copyNegate(const QDecNumber& o)
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{ decNumberCopyNegate(&m_data, &o.m_data); return *this; }
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QDecNumber& copySign(const QDecNumber& o, const QDecNumber& so)
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{ decNumberCopySign(&m_data, &o.m_data, &so.m_data); return *this; }
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uint32_t radix() const
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{ return decNumberRadix(&m_data); }
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QDecNumber& trim()
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{ decNumberTrim(&m_data); return *this; }
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const char* version() const
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{ return decNumberVersion(); }
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QDecNumber& zero()
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{ decNumberZero(&m_data); return *this; }
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// STATIC FUNCTIONS (UTILITIES)
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static const char* ClassToString(enum decClass dc)
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{ return decNumberClassToString(dc); }
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static const char* Version()
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{ return decNumberVersion(); }
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// RELATIONAL AND LOGICAL OPERATORS
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bool operator==(const QDecNumber& o) const
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{ return compare(o).isZero(); }
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bool operator!=(const QDecNumber& o) const
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{ return !(this->operator==(o)); }
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bool operator<(const QDecNumber& o) const
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{ return compare(o).isNegative(); }
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bool operator<=(const QDecNumber& o) const
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{
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const QDecNumber& r = compare(o);
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return r.isNegative() || r.isZero();
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}
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bool operator>(const QDecNumber& o) const
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{ return !(this->operator<=(o)); }
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bool operator>=(const QDecNumber& o) const
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{
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const QDecNumber& r = compare(o);
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return !r.isNegative() || r.isZero();
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}
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// BITWISE OPERATORS
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QDecNumber operator&(const QDecNumber& o) const
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{ return digitAnd(o); }
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QDecNumber operator|(const QDecNumber& o) const
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{ return digitOr(o); }
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QDecNumber operator^(const QDecNumber& o) const
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{ return digitXor(o); }
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// ARITHMETIC OPERATORS
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QDecNumber operator+(const QDecNumber& o) const
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{ return add(o); }
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QDecNumber operator-(const QDecNumber& o) const
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{ return subtract(o); }
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QDecNumber operator*(const QDecNumber& o) const
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{ return multiply(o); }
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QDecNumber operator/(const QDecNumber& o) const
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{ return divide(o); }
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QDecNumber operator%(const QDecNumber& o) const
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{ return remainder(o); }
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// COMPOUND ASSIGNMENT OPERATORS
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QDecNumber& operator+=(const QDecNumber& o)
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{ return copy(add(o)); }
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QDecNumber& operator-=(const QDecNumber& o)
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{ return copy(subtract(o)); }
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QDecNumber& operator*=(const QDecNumber& o)
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{ return copy(multiply(o)); }
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QDecNumber& operator/=(const QDecNumber& o)
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{ return copy(divide(o)); }
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QDecNumber& operator%=(const QDecNumber& o)
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{ return copy(remainder(o)); }
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QDecNumber& operator&=(const QDecNumber& o)
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{ return copy(digitAnd(o)); }
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QDecNumber& operator|=(const QDecNumber& o)
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{ return copy(digitOr(o)); }
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QDecNumber& operator^=(const QDecNumber& o)
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{ return copy(digitXor(o)); }
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}; // end class
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Q_DECLARE_METATYPE(QDecNumber);
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QDECIMAL_EXPORT
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QTextStream& operator<<(QTextStream& ts, const QDecNumber& n);
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#endif /* Include guard */
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