The Identity Function

Length: 35 minutes

Description

gave this bizarre talk at TPC 2001 in San Diego. The title backfired: Too many people didn't know what the identity function was, and those who did know assumed that I must have been referring to something else. The identity function is a function such as sub identity { return $_[0] } which returns its argument unchanged. In this talk, I show four unexpectedly useful uses for the identity function.

Complete Slides

  1. The Identity Function
  2. The Identity Function Revealed
  3. As a String Transformation
  4. As a Numeric Operation
  5. Operational Description
  6. Related Functions
  7. What?
  8. Function Calls in Strings
  9. Function Calls in Strings
  10. Function Calls in Strings
  11. Function Calls in Strings
  12. Function Calls in Strings
  13. Short Shameful Confession
  14. Short Shameful Confession
  15. Dynamic Allocation
  16. Dynamic Allocation
  17. The & and * Operators
  18. Dynamic Allocation
  19. Dynamic Allocation
  20. The * Operator
  21. The * Operator
  22. The & Operator
  23. The & Operator
  24. The & Operator
  25. IADDR
  26. Dynamic Allocation in Fortran
  27. Function Calls in Strings
  28. Reinstating Tied Objects
  29. Reinstating Tied Objects
  30. Reinstating Tied Objects
  31. Directory Searching
  32. Directory Searching
  33. Directory Computing
  34. Directory Computing
  35. Directory Computing
  36. Thank you!

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