QPatternist::IntegerMathematician Class Reference

Performs arithmetics between Integer values. More...

#include <qatomicmathematicians_p.h>

Inheritance diagram for QPatternist::IntegerMathematician:

Public Functions
virtual Item	calculate (const Item &o1, const Operator op, const Item &o2, const QExplicitlySharedDataPointer< DynamicContext > &context) const
	IntegerMathematician (const SourceLocationReflection *const r)
Public Functions inherited from QPatternist::AtomicMathematician
virtual	~AtomicMathematician ()
Public Functions inherited from QPatternist::AtomicTypeVisitorResult
	AtomicTypeVisitorResult ()
virtual	~AtomicTypeVisitorResult ()
Public Functions inherited from QSharedData
	QSharedData ()
	Constructs a QSharedData object with a reference count of 0. More...
	QSharedData (const QSharedData &)
	Constructs a QSharedData object with reference count 0. More...
Public Functions inherited from QPatternist::DelegatingSourceLocationReflection
virtual const SourceLocationReflection *	actualReflection () const
	DelegatingSourceLocationReflection (const SourceLocationReflection *const r)
virtual QString	description () const
Public Functions inherited from QPatternist::SourceLocationReflection
virtual QSourceLocation	sourceLocation () const
	SourceLocationReflection ()
virtual	~SourceLocationReflection ()

Additional Inherited Members
Public Types inherited from QPatternist::AtomicMathematician
enum	Operator {   Div = 1, IDiv = 2, Substract = 4, Mod = 8,   Multiply = 16, Add = 32 }
typedef QFlags< Operator >	Operators
typedef QExplicitlySharedDataPointer< AtomicMathematician >	Ptr
Public Types inherited from QPatternist::AtomicTypeVisitorResult
typedef QExplicitlySharedDataPointer< AtomicTypeVisitorResult >	Ptr
Static Public Functions inherited from QPatternist::AtomicMathematician
static QString	displayName (const AtomicMathematician::Operator op)
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Performs arithmetics between Integer values.

Author

Frans Englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 95 of file qatomicmathematicians_p.h.

Constructors and Destructors

IntegerMathematician()

QPatternist::IntegerMathematician::IntegerMathematician ( const SourceLocationReflection *const  r )

inline

Definition at line 99 of file qatomicmathematicians_p.h.

                                                                             : DelegatingSourceLocationReflection(r)
        {
        }

Functions

calculate()

Item IntegerMathematician::calculate ( const Item &  o1, const Operator  op, const Item &  o2, const QExplicitlySharedDataPointer< DynamicContext > &  context  ) const

virtual

Implements QPatternist::AtomicMathematician.

Definition at line 134 of file qatomicmathematicians.cpp.

{
    switch(op)
    {
        case Div:
            if(o2.as<Numeric>()->toInteger() == 0)
            {
                context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else /* C++ automatically performs truncation of long integer(xsInteger). */
                return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
        case IDiv:
        {
            if(o2.as<Numeric>()->toInteger() == 0)
            {
                context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else /* C++ automatically performs truncation of long integer(xsInteger). */
                return Integer::fromValue(o1.as<Numeric>()->toInteger() / o2.as<Numeric>()->toInteger());
        }
        case Substract:
            return Integer::fromValue(o1.as<Numeric>()->toInteger() - o2.as<Numeric>()->toInteger());
        case Mod:
        {
            const xsInteger divisor = o2.as<Numeric>()->toInteger();

            if(divisor == 0)
            {
                context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else
                return Integer::fromValue(o1.as<Numeric>()->toInteger() % divisor);
        }
        case Multiply:
            return Integer::fromValue(o1.as<Numeric>()->toInteger() * o2.as<Numeric>()->toInteger());
        case Add:
            return Integer::fromValue(o1.as<Numeric>()->toInteger() + o2.as<Numeric>()->toInteger());
    }

    Q_ASSERT(false);
    return Item(); /* GCC unbarfer. */
}

---

The documentation for this class was generated from the following files:

• /src/xmlpatterns/data/qatomicmathematicians_p.h
• /src/xmlpatterns/data/qatomicmathematicians.cpp