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101 lines
1.8 KiB
C++
101 lines
1.8 KiB
C++
9 years ago
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/** \file QDecQuad.cc
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* Definitions for the class QDecQuad.
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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: QDecQuad.cc 111 2006-06-19 03:45:40Z semihc $
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*
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*
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*/
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#include "QDecQuad.hh"
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extern "C" {
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#include "decimal128.h"
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}
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#include <stdlib.h>
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#include <QTextStream>
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#include "QDecNumber.hh"
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#include "QDecPacked.hh"
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#include "QDecDouble.hh"
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QDecQuad& QDecQuad::fromDouble(double d)
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{
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char str[MaxStrSize] = { 0 };
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#if defined(_MSC_VER)
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_snprintf(str, MaxStrSize, "%.*g", QDecNumDigits, d);
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#else
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snprintf(str, MaxStrSize, "%.*g", QDecNumDigits, d);
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#endif
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return fromString(str);
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}
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QDecQuad& QDecQuad::fromHexString(const char* str)
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{
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QByteArray ba = QByteArray::fromHex(str);
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int size = sizeof(m_data);
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char* p = (char*)&m_data;
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int i = 0;
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int j = size-1;
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for(; i<size; i++,j--)
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p[j] = ba.at(i);
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return *this;
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}
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QDecQuad& QDecQuad::fromQDecDouble(const QDecDouble& d)
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{
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decDoubleToWider(d.data(), &m_data);
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return *this;
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}
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QDecQuad& QDecQuad::fromQDecNumber(const QDecNumber& n, QDecContext* c)
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{
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decQuadFromNumber(&m_data, n.data(), CXT(c));
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return *this;
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}
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QDecQuad& QDecQuad::fromQDecPacked(const QDecPacked& p)
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{
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fromQDecNumber(p.toQDecNumber());
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return *this;
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}
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double QDecQuad::toDouble() const
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{
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char str[MaxStrSize] = { 0 };
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decQuadToString(&m_data, str);
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return strtod(str, 0);
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}
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QDecDouble QDecQuad::toQDecDouble(QDecContext* c) const
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{
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decDouble d;
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return decDoubleFromWider(&d, &m_data, CXT(c));
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}
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QDecPacked QDecQuad::toQDecPacked() const
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{
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return QDecPacked(toQDecNumber());
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}
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QDecNumber QDecQuad::toQDecNumber() const
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{
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decNumber n;
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return decQuadToNumber(&m_data, &n);
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}
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QTextStream& operator<<(QTextStream& ts, const QDecQuad& d)
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{
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ts << d.toString();
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return ts;
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}
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