Procedure TForm1.Button1Click(Sender: TObject) This second approach makes sense particularly for simple constants.Ī string constant defined with the resourcestring directive is stored in the resources of the program, in a string table. When you declare a constant, the compiler can choose whether to assign a memory location to the constant, and save its value there, or to duplicate the actual value each time the constant is used. Not for variables declared inside the scope of a Note: This initialization technique works only for global variables, Here's a Delphi example related to font styles: To add an element to a set, you can make the union of the set with another one that has only the element you need. ![]() The set operators includes: union (+), difference (-), intersection (*), membership test (in), plus some relational operators. 'is' Test whether object is type-compatible (another RTTI operator).'in' Test whether the item is a member of the set.'=' Test whether greater than or equal to, or a superset of a set.Relational and Comparison Operators (Lowest Precedence) '-' Arithmetic subtraction, set difference, pointer offset subtraction. ![]()
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