Use operator overloading for classes with non-ARC compiler · GitHub

[WayBack] Use operator overloading for classes with non-ARC compiler · GitHub

The trick: do not use class operator but use class function &&op_ with the special operator name in the table referenced below. Just follow the bulleted example links to get an idea.

Bonus: it works on class helper constructs as well.

Officially this unsupported and with the non-ARC compiler you will have a risk of memory leaks.

But it’s so much fun as these links prove:

• [WayBack] 『*[Delphi]』の検索結果 – 全力わはー (in Japanese; from the guy that discovered it)
  • and blogged about it: [WayBack] Use operator overloading for classes with non-ARC compiler – Zenryokuwawa
• [WayBack] Sobrecarga de operadores de clase – Foros Club Delphi (in Spanish; from the guy that dug deeper)
• TObjectHelper example – [WayBack] OpOverloadWithGenerics.pas · GitHub
• TStringListEx and TPointHelper example – [WayBack] Use operator overloading for classes with non-ARC compiler · GitHub

The usual operator gotchas apply here as well: Delphi operator overloading: table of operators, names, and some notes on usage and ‘glitches’.

The operators you could try: [WayBack] Operator Overloading (Delphi) – RAD Studio

Oh, this thread needs some change now: [WayBack] List of Delphi language features and version in which they were introduced/deprecated – Stack Overflow

–jeroen