2nd/10_Wiki/Dev/Topic_CPP/CPP_Variables_Identifiers.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-variables-identifiers	C++ Identifiers	Programming_Language	draft	conceptual		variable naming rules C++ 식별자		B	0.83	2026-07-04	2026-07-04			cpp programming-language w3schools variables naming	https://www.w3schools.com/cpp/cpp_variables_identifiers.asp

CPP Identifiers

🎯 한 줄 통찰 (One-line insight)

The naming rules here are IDENTICAL to C's variable-naming chapter word-for-word (letters/digits/underscores, must start with letter or underscore, case-sensitive, no reserved words) — confirming that C++'s identifier grammar is inherited directly from C rather than redesigned, which is exactly what the Intro chapter's "almost the same syntax" claim predicted in concrete terms. [S1]

🧠 핵심 개념 (Core concepts)

• Identifier — the unique name given to a variable. [S1]
• Naming rules — letters, digits, underscores allowed; must start with a letter or underscore; case-sensitive (myVar ≠ myvar); no whitespace/special characters; reserved keywords (like int) cannot be used as names. [S1]
• Descriptive naming recommended — minutesPerHour over m, for readability, even though both compile. [S1]

📖 세부 내용 (Details)

• Descriptive vs terse naming: int minutesPerHour = 60; // Good versus int m = 60; // OK, but unclear. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources). C 챕터와 규칙이 동일함이 확인됨.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — C에서 배운 식별자 규칙이 C++로 그대로 이어진다는 점이 언어 전환 학습자에게 유리한 지점이다. [S1]

💻 코드 패턴 (Code patterns)

Descriptive vs. terse variable naming (C++):

// Good
int minutesPerHour = 60;
// OK, but not so easy to understand what m actually is
int m = 60;

✅ 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 Variables, CPP Variables Constants, C Variables Names
• 참조 맥락: 식별자 규칙 — 상수(Variables Constants) 챕터로 이어짐.

📚 출처 (Sources)

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

📝 변경 이력 (Change history)

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