6.error_handling.md

Overview

A more comprehensive look into error handling in rust and how to properly handle the Result<> container. At times there may be a file read for the example.

• Basic handling when a function can raise multiple errors.
  • basic_handling.rs]
  • This example takes the first command line argument as a file name to read, if sepcified, or defaults to reading R_multiflora.fna if nothing is provided.
• Useful crates to extend error handling functionality
  • simple_error
  • error_chain (creating ErrorKinds and matching on error type)
  • error_chaining (using error-chain to link errors together)