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2.7 KiB
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-output-numbers | C++ Output Numbers | Programming_Language | draft | conceptual |
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B | 0.82 | 2026-07-04 | 2026-07-04 |
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CPP Output Numbers
🎯 한 줄 통찰 (One-line insight)
cout << accepts a raw MATHEMATICAL EXPRESSION directly (cout << 3 + 3;), not just a pre-computed variable or literal — meaning <<'s right-hand side is evaluated as a genuine expression before printing, unlike a naive assumption that only simple values can follow the insertion operator. [S1]
🧠 핵심 개념 (Core concepts)
- No quotes for numbers — unlike text, numeric values are NOT wrapped in double quotes when printed with
cout. [S1] - Inline expression evaluation —
cout << 3 + 3;computes the sum THEN prints the result (6), not the literal text "3 + 3". [S1]
📖 세부 내용 (Details)
- Printing a bare number:
cout << 3;. [S1] - Printing the result of addition:
cout << 3 + 3; // 6. [S1] - Printing the result of multiplication:
cout << 2 * 5; // 10. [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 — cout에 수식을 직접 넣어 계산 결과를 출력하는 패턴이 이후 산술 연산자(Operators Arithmetic) 챕터의 기초가 된다. [S1]
💻 코드 패턴 (Code patterns)
Printing the result of an inline arithmetic expression (C++):
cout << 3 + 3; // Outputs 6, not "3 + 3"
✅ 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 Output, CPP New Lines
- 참조 맥락: 숫자 출력 — 줄바꿈(New Lines) 챕터로 이어짐.
📚 출처 (Sources)
- [S1] W3Schools — C++ Output Numbers — https://www.w3schools.com/cpp/cpp_output_numbers.asp
📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "C++ Output Numbers" page (Astra wiki-curation, P-Reinforce v3.1 format).