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Practice

Predict the Category

advanced~22 min of coding3 challenges

Three challenges where you define functions whose call expressions land in exactly the right value category — verified with decltype probes, the tool professionals use.

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What you will practice

  1. Land Each Call in Its Categoryadvanced
  2. The Named-Rvalue Trapadvanced
  3. A const rvalue cannot be moved fromadvanced

Need the concept first? Re-read the lesson.