Namespace Xpath
Class CValueCompare

class CValueCompare {
public:
    enum {
        equal,
        notEqual,
        less,
        greater,
        lessOrEqual,
        greaterOrEqual
        };
public:
    CValueCompare(const XContext &pContext);
    ~CValueCompare();
public:
    bool Compare(
        int nOp, const XValue &pValue1, const XValue &pValue2);
    };

The XPath value comparison engine.

Since:

1.00.00

Version:

1.00.00

Author:

Alexey Gokhberg

See Also:

CValue, CContext

CValueCompare

CValueCompare(const XContext &pContext);

Constructs the value comparison handler.

Parameters:

pContext - the evaluation context to be used by value comparison procedures

~CValueCompare

~CValueCompare();

Destroys the value comparison handler.

Compare

bool Compare(
    int nOp, const XValue &pValue1, const XValue &pValue2);

Applies the given comparison operation to the pair of values.

The comparison operation code must be supplied. Operation codes are defined by the anonymous enumeration in this class declaration.

Parameters:

nOp - the comparison operation code

pValue1 - the first operand

pValue2 - the second operand

Returns:

true if the result of comparison is true; false otherwise