By name: m13-domain-error description: "Mastering C++ Domain Errors: Exception Hierarchies, System Errors, and Expected."
C++ Domain Errors
Core Question
Who catches this?
- Exception: Inherit
std::runtime_error. - System Error:
std::error_code(OS codes).
Thinking Prompt
Is it a Domain Event?
InsufficientFundsis an exception type.
Does it have context?
- "File not found" needs "Which file?".
struct FileError : std::runtime_error { std::filesystem::path p; ... }
Quick Reference
| Pattern | Use Case |
|---|---|
std::runtime_error |
Base for most failures. |
std::logic_error |
Bug (violation of precondition). |
std::expected |
Visible failure path. |