C3 Tutorial
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Error Handling 1

  • C3 has a peculiar sort of optional values. When an optional has a real value, it contains the value, otherwise it contains the reason the value was missing.
  • An optional result type is created by taking a type and appending !.
  • The simplest optional is void!. Because it has no value, it only carries a value in case of a failure, making it identical to an error code.
  • It is possible to convert a void! to an anyfault using @catch()