m06-error-handling
Skill14 starsChanged 9 months agoMITView on GitHub
Mastering C++ Error Handling. Triggers: exceptions, try-catch, noexcept, std::expected, std::optional, error codes, assert, terminate.
7 other projects use a version of this.
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- TeddyAlbina/skillstheir own version, first seen Nov 1, 2026
- moeru-ai/auvtheir own version, first seen Oct 10, 2026
- fjrevoredo/mini-diariumtheir own version, first seen Oct 8, 2026
- ZhangHanDong/rust-skillstheir own version, first seen Oct 8, 2026
- MovGP0/Skillstheir own version, first seen Jun 30, 2026
- pocket-veto/pocket-vetotheir own version, first seen Jun 27, 2026
Other versions7 projects use a version of this.
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Wrote their own version · 7
- ZhangHanDong/rust-skills★ 1.5ksame name
- actionbook/rust-skills★ 1.5ksame name
- fjrevoredo/mini-diarium★ 318same name
- moeru-ai/auv★ 207same name
- TeddyAlbina/skills★ 2same name
- MovGP0/Skills★ 1same name
- pocket-veto/pocket-veto★ 1same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository14 other files it gives its agents.
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- m01-ownershipSkill
- m02-resourceSkill
- m03-mutabilitySkill
- m04-zero-costSkill
- m05-type-drivenSkill
- m07-concurrencySkill
- m09-domainSkill
- m10-performanceSkill
- m11-ecosystemSkill
- m12-lifecycleSkill
- m13-domain-errorSkill
- m14-mental-modelSkill
- m15-anti-patternSkill
The file
Files
C++ Error Handling
Core Question
Is this error recoverable?
- Yes (Local):
std::expectedor return code. - Yes (Distant): Exceptions (
throw). - No (Bug):
assertorstd::terminate.
Error → Design Question
| 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). |
Thinking Prompt
- Is absence valid?
- Yes? →
std::optional<T>.
- Yes? →
- Does caller need details?
- Yes? →
std::expected<T, E>or Exception. - No? →
boolorstd::optional.
- Yes? →
- Is it a Logic Error (Bug)?
- Yes? →
assert()orstd::terminate(). Do not throw for bugs in C++ (Contract Violation).
- Yes? →
Trace Up / Down
- Trace Up:
- Issue: "Program aborted with 'terminate called recursively'."
- Cause: An exception was thrown while stack unwinding (in a destructor).
- Fix: Fix the destructor. Ensure RAII cleanup is
noexcept.
Quick Reference
| 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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