菜单
Mastering C++ Error Handling. Triggers: exceptions, try-catch, noexcept, std::expected, std::optional, error codes, assert, terminate.
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基于 SOC 职业分类
| name | m06-error-handling |
| description | Mastering C++ Error Handling. Triggers: exceptions, try-catch, noexcept, std::expected, std::optional, error codes, assert, terminate. |
Is this error recoverable?
std::expected or return code.throw).assert or std::terminate.| Issue | Design Question |
|---|---|
| Uncaught Exception | Did you forget to catch, or throw in noexcept? |
| Silent Failure | Did you ignore a return code? (Use [[nodiscard]]). |
| Destructor Throw | Never throw from destructor (std::terminate). |
Is absence valid?
std::optional<T>.Does caller need details?
std::expected<T, E> or Exception.bool or std::optional.Is it a Logic Error (Bug)?
assert() or std::terminate(). Do not throw for bugs in C++ (Contract Violation).noexcept.| Mechanism | Cost (Happy) | Cost (Sad) | Use When |
|---|---|---|---|
std::optional | Branch | Branch | Return may be empty. |
std::expected | Branch | Branch | Recoverable error (Parsing). |
| Exception | Zero | Huge | Rare IO/Resource errors. |
| Assert | Zero (Release) | Abort | Logic bugs / Invariants. |
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Mastering C++ Ownership: Move Semantics, RAII, and Reference Safety. Triggers: std::move, use-after-free, double-free, dangling pointer, copy elision, RVO, reference qualifiers.
Mastering C++ Smart Pointers: unique_ptr, shared_ptr, weak_ptr. Triggers: memory management, cycles, enable_shared_from_this, make_unique, make_shared, custom deleters.
Mastering C++ Const Correctness and Mutability. Triggers: const, mutable, logically const, bitwise const, data race, mutex, shared_mutex, thread safety.
Mastering C++ Polymorphism: Templates, Concepts, and Virtual Functions. Triggers: templates, concepts, vtable, CRTP, static polymorphism, dynamic polymorphism, SFINAE.
Mastering C++ Type-Driven Design. Triggers: strong types, phantom types, type state pattern, builder pattern, invalid state unrepresentable.