How to implement an error wrapper for all existing Errors?

Question

I want to use my customised error type in all functions and I need to wrap the existing standard errors so that the ? operator will succeed.

Here is wha

Answer 1

There's an excellent post about it. To get first-class support for your error you need to do two things:

• Implement the Error trait for your type.
• Implement std::convert::From for error types you want to use seamlessly with the ? operator (the quick_error crate helps automate this).