m06-error-handling

What problem does it solve?

C++ error handling is often complex, fragmented, and easy to mishandle, leading to brittle code and subtle bugs. This Skill provides a cohesive set of patterns and decisions to make error handling explicit, safe, and maintainable across codebases.

Core Features & Use Cases

• Central guidance on when to use exceptions, error codes, std::optional, and std::expected.
• Clear strategies for noexcept and RAII to ensure resource safety during errors.
• Real-world scenarios across library boundaries and application code to reduce silent failures and improve debuggability.

Quick Start

Write a small function that returns std::optional<T> on failure and refactor it to use std::expected<T, E> with proper noexcept where appropriate.