всегда ли int int32

 Returns true if the instance is a numeric, string or URL type variable.

 Is this variable part of the current selection?

 Returns true if the instance is a constructor (i.e., , or ) type variable.

  (const string &n, const string &d)

virtual bool  ( &um, *dds, bool reuse=false)

 Returns the name of the dataset used to create this instance.

 Compare an object's current state with the semantics of its type.

virtual bool  (string &msg, bool all=false)