Delphi Const Array
Delphi Constant Array
There is a significant new feature in the Object Pascal language for XE7 and that is the improved support for initializing dynamic arrays and operating on them. The What's new page covers is here:.
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Delphi Const Array Of Type
Before we start, if you haven't used dynamic arrays in object Pascal much, I can recommend you this nice introduction by Jacob (of Castalia fame): So what's new in XE7? The Object Pascal language allows you to do a few new operations: • Assign a constant array to a dynamic array • Concatenate two constant arrays with the + symbol • Use the following RTL functions on any dynamic array (not just strings): Insert, Delete, and Concat You might have seen code like this, that we used in some demos: var di: array of Integer; i: Integer; begin di:= [1, 2, 3]; // initialization di:= di + di; // concatenation di:= di + [4, 5]; // mixed concatenation for i in di do begin Memo1.Lines.Add (i.ToString); end; Notice the use of a for-in statement to scan the array elements.