2nd/10_Wiki/Topics/Domain_Programming/Topic_CPP/CPP_Arrays.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-arrays	C++ Arrays	Programming_Language	draft	conceptual		array declaration string arrays C++ 배열		B	0.85	2026-07-04	2026-07-04			cpp programming-language w3schools arrays	https://www.w3schools.com/cpp/cpp_arrays.asp

CPP Arrays

🎯 한 줄 통찰 (One-line insight)

C++ arrays can directly hold string elements (string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};) — something C could never do without manually nesting char arrays inside an outer array — meaning C++'s richer string type extends all the way into array element types, letting arrays of text behave as naturally as arrays of numbers. [S1]

🧠 핵심 개념 (Core concepts)

• Array declaration with size — type arrayName[size]; reserves space for size elements. [S1]
• Array literal initialization — {val1, val2, ...} fills the array at declaration time. [S1]
• Zero-based indexing — [0] is the first element. [S1]
• Mutable elements — any element can be reassigned by index after creation. [S1]
• Arrays of string — unlike C (which needs nested char arrays for text arrays), C++ arrays can hold string elements directly. [S1]

📖 세부 내용 (Details)

• Declaring a string array with a literal: string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};. [S1]
• Accessing an element: cout << cars[0]; // Volvo. [S1]
• Modifying an element: cars[0] = "Opel"; cout << cars[0]; // Now outputs Opel instead of Volvo. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• C++ 배열은 string을 직접 담을 수 있음: C에서는 문자열 배열을 만들려면 char 배열들을 중첩해야 했지만, C++에서는 string cars[4] = {...}처럼 배열 원소로 string을 직접 사용할 수 있다는 점이 확인됨. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 자동차 브랜드 목록을 string 배열로 다루는 예제가 텍스트 데이터를 배열로 관리하는 실전 활용의 기초다. [S1]

💻 코드 패턴 (Code patterns)

A string array — a text-array construction impossible directly in C (C++):

string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};
cars[0] = "Opel";
cout << cars[0]; // Opel

✅ 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: CPP Break, CPP Arrays Size, C Arrays
• 참조 맥락: 배열 섹션 첫 챕터 — 배열 크기(Arrays Size) 챕터로 이어짐.

📚 출처 (Sources)

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

📝 변경 이력 (Change history)

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