docs(10_Wiki): Topic_Business/General/Graphic/Programming을 Topics/ 하위로 이동

최상위 10_Wiki/Topic_*였던 4개 카테고리 폴더를 10_Wiki/Topics/Topic_* 로 재배치. 콘텐츠 변경 없음(순수 폴더 이동) — Topics/ 하위 나머지 폴더는 이미 지난 커밋에서 전부 정리된 상태(잔존 항목은 에이전트 운영 상태 및 사용자가 보존을 요청한 업데이트0615/무제 3.canvas 뿐).
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+---
+id: c-comments
+title: "C Comments"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["single-line comments", "multi-line comments", "C 주석"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.85
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["c", "programming-language", "w3schools", "comments"]
+raw_sources: ["https://www.w3schools.com/c/c_comments.php"]
+applied_in: []
+github_commit: ""
+---
+
+# [[C Comments]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Before C99 (1999), single-line `//` comments were NOT part of standard C at all — only `/* */` multi-line comments existed — meaning `//` comments, now the default choice for short notes, are actually a relatively recent addition to the language's ~50-year history, not an original feature. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Single-line comments (`//`)** — everything from `//` to the end of the line is ignored by the compiler. [S1]
+- **Multi-line comments (`/* */`)** — everything between the markers is ignored, regardless of line count. [S1]
+- **Comments as code-disabling tool** — `//` can be prefixed to a line of working code to temporarily disable it during testing, without deleting it. [S1]
+- **Historical constraint** — pre-C99, only `/* */` was valid; `//` support was added in the C99 standard. [S1]
+
+## 📖 세부 내용 (Details)
+- Single-line comment before code: `// This is a comment` followed by `printf("Hello World!");`. [S1]
+- Single-line comment disabling code: `printf("This will run"); // printf("This will NOT run");`. [S1]
+- Multi-line comment: `/* The code below will print the words Hello World! to the screen, and it is amazing */ printf("Hello World!");`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **// 주석의 표준화 시점**: C99(1999) 이전에는 다중 줄 주석(/* */)만 사용 가능했고, 한 줄 주석(//)은 C99부터 표준에 포함되었다는 역사적 사실이 명시됨 — 구형 컴파일러/표준 준수 코드 작성 시 유의해야 할 사항. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 특정 코드 줄을 지우지 않고 // 로 임시 비활성화하는 것이 실전 디버깅/테스트에서 흔히 쓰이는 기법이다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Temporarily disabling a line of code using a single-line comment instead of deleting it (C):
+```c
+printf("This will run");
+// printf("This will NOT run");
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.85
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[C Tutorial]]
+- **관련 개념:** [[C Output]], [[C Organize Code]]
+- **참조 맥락:** 주석 문법 — 코드 조직화(Organize Code) 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — C Comments — https://www.w3schools.com/c/c_comments.php
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "C Comments" page (Astra wiki-curation, P-Reinforce v3.1 format).