2nd/10_Wiki/Dev/Topic_CPP/CPP_Operators_Logical.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-operators-logical	C++ Logical Operators	Programming_Language	draft	conceptual		&& || ! logical AND OR NOT C++ 논리 연산자		B	0.83	2026-07-04	2026-07-04			cpp programming-language w3schools operators logical	https://www.w3schools.com/cpp/cpp_operators_logical.asp

CPP Logical Operators

🎯 한 줄 통찰 (One-line insight)

The source labels these results "true (1) or false (0)" in the SAME breath, explicitly pairing the boolean word with its integer representation — a small but telling detail showing C++ treats true/false as just readable NAMES for the underlying 1/0 values rather than a genuinely distinct data representation, consistent with the Comparison Operators chapter's finding. [S1]

🧠 핵심 개념 (Core concepts)

• && (AND) — returns true only if BOTH statements are true. [S1]
• || (OR) — returns true if AT LEAST ONE statement is true. [S1]
• ! (NOT) — reverses the result. [S1]
• True(1)/False(0) duality — the source explicitly writes results as "true (1) or false (0)," reinforcing that boolean values ARE their integer representation, not a separate concept. [S1]

📖 세부 내용 (Details)

• The three operators listed with example expressions: x < 5 && x < 10 (AND), x < 5 || x < 4 (OR), !(x < 5 && x < 10) (NOT). [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 — 이 챕터가 소개하는 세 논리 연산자가 이후 조건문 내 논리 연산(Conditions Logical) 챕터의 실전 응용으로 이어진다. [S1]

💻 코드 패턴 (Code patterns)

Combining two conditions with logical AND (C++):

int x = 4;
cout << (x < 5 && x > 2); // 1 (true) — both conditions hold

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.83
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: C++ Tutorial
• 관련 개념: CPP Operators Comparison, CPP Operators Precedence, CPP Conditions Logical
• 참조 맥락: 논리 연산자 — 연산자 우선순위(Operators Precedence) 챕터로 이어짐.

📚 출처 (Sources)

• [S1] W3Schools — C++ Logical Operators — https://www.w3schools.com/cpp/cpp_operators_logical.asp

📝 변경 이력 (Change history)

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