What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?

What are some good explanations on what argument dependent lookup is? Many people also call it Koenig Lookup as well.

Preferably I’d like to know:

  • Why is it a good thing?
  • Why is it a bad thing?
  • How does it work?

4 Answers
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