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Editorial Team
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Asked: 2026-05-18T22:24:04+00:00

Out of curiosity, what may the rationale behind these function names (found in Apple’s

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Out of curiosity, what may the rationale behind these function names (found in Apple’s Quartz Core framework) be?

  • ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv()
  • ZNK2CA6Render9Animation9next_timeEdRd()
  • ZN2CA11GenericRectIiE5insetEii()

Do you think the developers somehow encoded argument types in function names? How do you find yourself putting “EP19” in there in the course of day-to-day coding? In what circumstances do such barely readable function names actually help you read code and otherwise be more productive?

Thanks in advance for any hints, and Merry Christmas!

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1 Answer

  1. Editorial Team

    These ‘mangled’ names are automatically generated by the C++ compiler and indeed encode type information.

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