2nd/10_Wiki/Dev/Topic_CPP/CPP_Operators_Assignment.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-assignment	C++ Assignment Operators	Programming_Language	draft	conceptual		compound assignment += -= *= C++ 대입 연산자		B	0.84	2026-07-04	2026-07-04			cpp programming-language w3schools operators assignment	https://www.w3schools.com/cpp/cpp_operators_assignment.asp

CPP Assignment Operators

🎯 한 줄 통찰 (One-line insight)

This chapter explicitly explains WHY these operators are called "compound" — they combine a regular operator (+, -, *, etc.) with the assignment operator (=) into ONE single operator (+= = + combined with =) — a naming rationale C's equivalent chapter never spelled out, even though the underlying expansion rule (x OP= y ≡ x = x OP y) is identical between the two languages. [S1]

🧠 핵심 개념 (Core concepts)

• = — basic assignment. [S1]
• Compound assignment operators — +=, -=, *=, /=, %=, &=, |=, ^=, >>=, <<=, each expanding to x = x <op> value. [S1]
• "Compound" naming rationale — explicitly explained as combining a regular operator with = into one operator symbol. [S1]
• Purpose — pure shorthand for readability/brevity, especially when updating the same variable repeatedly. [S1]

📖 세부 내용 (Details)

• Basic compound usage: int x = 10; x += 5; // same as x = x + 5 cout << x; // 15 x *= 2; // same as x = x * 2 cout << x; // 30. [S1]
• Real-life savings tracker: int savings = 100; savings += 50; cout << "Total savings: " << savings;. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources). C 챕터와 동일한 확장 규칙이 확인되었으나, "compound"라는 명칭의 유래(연산자+대입 결합)를 이 챕터가 더 명시적으로 설명함.

🛠️ 적용 사례 (Applied in summary)

저축액에 50을 더하는 savings += 50 예제가 원문에서 직접 실전 활용 사례로 제시됨(계좌 잔액 누적 갱신). [S1]

💻 코드 패턴 (Code patterns)

Tracking a running total using the compound addition-assignment operator (C++):

int savings = 100;
savings += 50; // add 50 to savings
cout << "Total savings: " << savings;

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.84
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: C++ Tutorial
• 관련 개념: CPP Operators Arithmetic, CPP Operators Comparison, C Operators Assignment
• 참조 맥락: 대입 연산자 — 비교 연산자(Operators Comparison) 챕터로 이어짐.

📚 출처 (Sources)

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

📝 변경 이력 (Change history)

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