55 }

    55 }

    56 

    56 

    57 }

    57 }

    58 

    58 

    59 /**

    59 /**

    60  * \defgroup AttributeHelper Attribute Helper

    61  * \defgroup AttributeHelper Attribute Helper

    61  *

    62  *

    62  * All these macros can be used to generate automatically the code

    63  * All these macros can be used to generate automatically the code

    63  * for subclasses of AttributeValue, AttributeAccessor, and, AttributeChecker,

    64  * for subclasses of AttributeValue, AttributeAccessor, and, AttributeChecker,

    64  * which can be used to give attribute powers to a normal class. i.e.,

    65  * which can be used to give attribute powers to a normal class. i.e.,