2nd/10_Wiki/Topics/Domain_Programming/Topic_CPP/CPP_Inheritance.md

id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit

id	title	category	status	verification_status	canonical_id	aliases	duplicate_of	source_trust_level	confidence_score	created_at	updated_at	review_reason	merge_history	tags	raw_sources	applied_in	github_commit
cpp-inheritance	C++ Inheritance	Programming_Language	draft	conceptual		base class derived class C++ 상속		B	0.86	2026-07-04	2026-07-04			cpp programming-language w3schools oop inheritance	https://www.w3schools.com/cpp/cpp_inheritance.asp

CPP Inheritance

🎯 한 줄 통찰 (One-line insight)

The Car class never declares a brand attribute or a honk() method of its own — it inherits BOTH directly from Vehicle via the single : public Vehicle syntax, and myCar.honk() works exactly as if honk() had been written inside Car itself, meaning inheritance in C++ isn't a reference or delegation mechanism but a literal MERGING of the parent's members into the child, accessible with zero extra syntax at the call site. [S1]

🧠 핵심 개념 (Core concepts)

• Inheritance — one class (derived/child) reuses attributes and methods from another (base/parent), avoiding duplication. [S1]
• : public BaseClass — the syntax for inheriting; placed after the derived class's name. [S1]
• Zero-syntax access to inherited members — a child object calls inherited methods and reads inherited attributes exactly like its own, with no special prefix. [S1]
• Why inherit — code reusability — reuse an existing class's attributes/methods when creating a new one. [S1]

📖 세부 내용 (Details)

• A child class inheriting an attribute and method from its parent: class Vehicle { public: string brand = "Ford"; void honk() { cout << "Tuut, tuut! \n"; } }; class Car: public Vehicle { public: string model = "Mustang"; }; Car myCar; myCar.honk(); // inherited from Vehicle cout << myCar.brand + " " + myCar.model; // brand inherited, model is Car's own. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources).

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Vehicle의 brand와 honk()를 Car가 그대로 물려받는 예제가 상속을 통한 코드 재사용의 대표 실전 활용이다. [S1]

💻 코드 패턴 (Code patterns)

A child class inheriting an attribute and method from its parent with zero extra syntax (C++):

class Vehicle { // Base class
public:
  string brand = "Ford";
  void honk() { cout << "Tuut, tuut! \n"; }
};
class Car: public Vehicle { // Derived class
public:
  string model = "Mustang";
};
int main() {
  Car myCar;
  myCar.honk(); // inherited method, works directly
  cout << myCar.brand + " " + myCar.model;
  return 0;
}

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.86
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: C++ Tutorial
• 관련 개념: CPP Encapsulation, CPP Inheritance Access
• 참조 맥락: 상속 섹션 첫 챕터 — 상속 접근 지정자(Inheritance Access) 챕터로 이어짐.

📚 출처 (Sources)

• [S1] W3Schools — C++ Inheritance — https://www.w3schools.com/cpp/cpp_inheritance.asp

📝 변경 이력 (Change history)

• 2026-07-04: Initial draft synthesized from the W3Schools "C++ Inheritance" page (Astra wiki-curation, P-Reinforce v3.1 format).