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Paste # 9486
2019-05-23 08:09:16

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Using mutable keys in equal?-based hash tables

  1. (define o (box 1))
  2. (define h (hash-set (hash) o 123))
  3. (set-box! o 2)
  4. (hash-ref h o)
  5. ; hash-ref: no value found for key
  6. ;   key: '#&2
  7. ; [,bt for context]

=>

load-handler: expected a `module' declaration for `pasterack' in "paste 9486", but found something else

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