voidattributeid.h from The Nebula Device at Krugle

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#ifndef ATTR_VOID_ATTRIBUTE_ID_H
#define ATTR_VOID_ATTRIBUTE_ID_H
//------------------------------------------------------------------------------
/**
    @class VoidAttributeID

    @brief see class AttributeID

    (C) 2005 Radon Labs GmbH

*/
#include "attr/attributeid.h"

namespace Attr
{

class VoidAttributeID : public AttributeID
{
public:
    VoidAttributeID();
    VoidAttributeID(const _attridTyped<attr::VoidT>*);
    VoidAttributeID(const nString& name); // must exist!
    virtual ~VoidAttributeID();

    /// equality operator
    friend bool operator==(const VoidAttributeID& lhs, const VoidAttributeID& rhs);
    /// inequality operator
    friend bool operator!=(const VoidAttributeID& lhs, const VoidAttributeID& rhs);

    static VoidAttributeID FindVoidAttributeID(const nString& name);
};

//------------------------------------------------------------------------------
/**
*/
inline
bool
operator==(const VoidAttributeID& lhs, const VoidAttributeID& rhs)
{
    return lhs.attridPtr == rhs.attridPtr;
}

//------------------------------------------------------------------------------
/**
*/
inline
bool
operator!=(const VoidAttributeID& lhs, const VoidAttributeID& rhs)
{
    return lhs.attridPtr != rhs.attridPtr;
}

//------------------------------------------------------------------------------
/**
*/
inline
VoidAttributeID::VoidAttributeID(const _attridTyped<attr::VoidT>* aip) :
    AttributeID(aip)
{
}

//------------------------------------------------------------------------------
/**
*/
inline
VoidAttributeID::VoidAttributeID() :
    AttributeID()
{
}

//------------------------------------------------------------------------------
/**
    Gives the AttributeID "name".
    Will fail hard if AttributeID doesn't exist.
*/
inline
VoidAttributeID::VoidAttributeID(const nString& name)
{
    const VoidAttributeID& existingID = VoidAttributeID::FindVoidAttributeID(name);

    if (!existingID.IsValid())
    {
        n_error("Error: Attribute ID of name \"%s\" not found!", name.Get());
    }

    this->attridPtr = existingID.attridPtr;
}

//------------------------------------------------------------------------------
/**
*/
inline
VoidAttributeID::~VoidAttributeID()
{
}

} // namespace Attr

//------------------------------------------------------------------------------
#endif
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