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10_Wiki/Topic_Programming/Topic_CPP/CPP_Conditions_Else.md

@@ -0,0 +1,70 @@
+---
+id: cpp-conditions-else
+title: "C++ Else"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["else statement", "C++ else 문"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.82
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["cpp", "programming-language", "w3schools", "conditions", "else"]
+raw_sources: ["https://www.w3schools.com/cpp/cpp_conditions_else.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CPP Else]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+The identical time-of-day (`time < 18`) example and the identical `isDay`-naming advice from C's Else chapter reappear here unchanged — confirming that descriptive boolean naming as a pure communication device (not a behavioral change) is a language-agnostic best practice the tutorial deliberately repeats across both C and C++. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`else`** — runs a block of code when the paired `if` condition is false. [S1]
+- **Mutually exclusive branches** — exactly one of `if`/`else` executes. [S1]
+- **Descriptive boolean naming** — storing a condition in a variable like `isDay` documents its MEANING. [S1]
+
+## 📖 세부 내용 (Details)
+- Basic if/else: `int time = 20; if (time < 18) { cout << "Good day."; } else { cout << "Good evening."; } // Outputs "Good evening."`. [S1]
+- Same logic with a descriptively-named boolean: `bool isDay = time < 18; if (isDay) { cout << "Good day."; } else { cout << "Good evening."; }`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources).
+
+## 🛠️ 적용 사례 (Applied in summary)
+시간(time)이 18보다 작은지에 따라 "좋은 하루"/"좋은 저녁"을 출력하는 예제가 C 챕터와 동일하게 실전 활용 사례로 제시됨. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Naming a boolean condition descriptively for readability (C++):
+```cpp
+int time = 20;
+bool isDay = time < 18;
+if (isDay) {
+  cout << "Good day.";
+} else {
+  cout << "Good evening.";
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.82
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[C++ Tutorial]]
+- **관련 개념:** [[CPP Conditions]], [[CPP Conditions ElseIf]], [[C Conditions Else]]
+- **참조 맥락:** else 문 — else if 문(Conditions ElseIf) 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — C++ Else — https://www.w3schools.com/cpp/cpp_conditions_else.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "C++ Else" page (Astra wiki-curation, P-Reinforce v3.1 format).