// Copyright: Matra-Datavision 1991 // File: Expr_NamedUnknown.lxx // Created: Mon Dec 2 14:30:57 1991 // Author: Arnaud BOUZY // inline Standard_Boolean Expr_NamedUnknown::IsAssigned() const { return !(myExpression.IsNull()); } inline void Expr_NamedUnknown::Deassign () { myExpression.Nullify(); }