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| ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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| ** GNU General Public License Usage |
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| |
| /* |
| * @file |
| * @short This file is included by qatomicmathematicians_p.h |
| * if you need some includes, put them in qabstractfloatmathematician_p.h, outside of the namespace. |
| */ |
| |
| template <const bool isDouble> |
| Item AbstractFloatMathematician<isDouble>::calculate(const Item &o1, |
| const Operator op, |
| const Item &o2, |
| const QExplicitlySharedDataPointer<DynamicContext> &context) const |
| { |
| const Numeric *const num1 = o1.template as<Numeric>(); |
| const Numeric *const num2 = o2.template as<Numeric>(); |
| switch(op) |
| { |
| case Div: |
| return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() / num2->toDouble())); |
| case IDiv: |
| { |
| if(num1->isNaN() || num2->isNaN()) |
| { |
| context->error(QtXmlPatterns::tr("No operand in an integer division, %1, can be %2.") |
| .arg(formatKeyword("idiv")) |
| .arg(formatData("NaN")), |
| ReportContext::FOAR0002, this); |
| } |
| else if(num1->isInf()) |
| { |
| context->error(QtXmlPatterns::tr("The first operand in an integer division, %1, cannot be infinity (%2).") |
| .arg(formatKeyword("idiv")) |
| .arg(formatData("INF")), |
| ReportContext::FOAR0002, this); |
| } |
| else if(num2->toInteger() == 0) |
| context->error(QtXmlPatterns::tr("The second operand in a division, %1, cannot be zero (%2).") |
| .arg(formatKeyword("idiv")) |
| .arg(formatData("0")), |
| ReportContext::FOAR0001, this); |
| |
| return Integer::fromValue(static_cast<xsInteger>(num1->toDouble() / num2->toDouble())); |
| } |
| case Substract: |
| return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() - num2->toDouble())); |
| case Mod: |
| return toItem(AbstractFloat<isDouble>::fromValue(::fmod(num1->toDouble(), num2->toDouble()))); |
| case Multiply: |
| return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() * num2->toDouble())); |
| case Add: |
| return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() + num2->toDouble())); |
| } |
| |
| Q_ASSERT(false); |
| return Item(); /* GCC unbarfer. */ |
| } |
| |