Grammar - Error (Handling)

> Code - (Programming|Computer) Language > Code - Grammar / Syntax (Lexical)

1 - About

An error is an exceptional conditions that breaks the normal flow

same as Code - Exception (Try, Catch, Finally statement) ?

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3 - Management

3.1 - Code

3.2 - Message

3.3 - Propagation

Error propagation is when an error that occurs in a block of code is propagated to its caller.

This is easy in a single thread application but really difficult in multi-thread.