2nd/10_Wiki/Topic_Programming/Topic_C/C_Break_Continue.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
c-break-continue	C Break and Continue	Programming_Language	draft	conceptual		break statement continue statement loop control C break continue		B	0.86	2026-07-04	2026-07-04			c programming-language w3schools loops break continue	https://www.w3schools.com/c/c_break_continue.php

C Break and Continue

🎯 한 줄 통찰 (One-line insight)

break and continue are the same two keywords across BOTH switch statements and loops, but their meaning shifts by context — the source explicitly notes break was already seen "jumping out" of a switch block, and here it does the analogous thing for a LOOP (stop entirely), while continue has no switch equivalent at all — meaning break's core behavior ("exit the current block early") generalizes across constructs, but continue's "skip to next iteration" concept is loop-specific. [S1]

🧠 핵심 개념 (Core concepts)

• break — stops the loop COMPLETELY, immediately, regardless of remaining iterations. [S1]
• continue — skips the REST of the current iteration's body and jumps straight to the next iteration (does not stop the loop). [S1]
• Combinability — break and continue can coexist in the same loop, each triggered by different conditions. [S1]
• Works in both for and while loops — the same semantics apply regardless of loop type. [S1]
• Real-world pattern: skip-then-stop — using continue to skip invalid/unwanted values while using break to halt entirely on a sentinel value (like a zero marking "end of valid data"). [S1]

📖 세부 내용 (Details)

• break stopping a for loop at i==4: for (i = 0; i < 10; i++) { if (i == 4) { break; } printf("%d\n", i); } — prints 0,1,2,3 then stops entirely. [S1]
• continue skipping just one value: for (i = 0; i < 10; i++) { if (i == 4) { continue; } printf("%d\n", i); } — prints 0,1,2,3,5,6,7,8,9 (skips only 4). [S1]
• Combined in one loop: for (i = 0; i < 6; i++) { if (i == 2) { continue; } if (i == 4) { break; } printf("%d\n", i); } — prints 0,1,3 then stops at 4. [S1]
• Real-life skip-negatives-stop-at-zero pattern: int myNumbers[] = {3, -1, 7, 0, 9}; for (i = 0; i < length; i++) { if (myNumbers[i] < 0) { continue; } if (myNumbers[i] == 0) { break; } printf("%d\n", myNumbers[i]); } — prints 3 and 7, skips -1, stops entirely at 0 (never reaching 9). [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• break와 continue의 근본적 차이: break는 루프를 완전히 종료하지만 continue는 현재 회차만 건너뛰고 루프는 계속된다는 점이 "Good to Remember" 요약으로 명확히 구분됨. [S1]

🛠️ 적용 사례 (Applied in summary)

음수는 건너뛰고(continue) 0을 만나면 완전히 멈추는(break) 숫자 리스트 처리 예제가 원문에서 직접 실전 활용 사례로 제시됨. [S1]

💻 코드 패턴 (Code patterns)

Combining continue (skip invalid values) and break (stop at a sentinel value) in one loop (C):

int myNumbers[] = {3, -1, 7, 0, 9};
int length = sizeof(myNumbers) / sizeof(myNumbers[0]);
int i;
for (i = 0; i < length; i++) {
  if (myNumbers[i] < 0) {
    continue; // skip negative numbers
  }
  if (myNumbers[i] == 0) {
    break; // stop loop when zero is found
  }
  printf("%d\n", myNumbers[i]);
}

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.86
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: C Tutorial
• 관련 개념: C For Loop RealLife, C Switch, C Arrays
• 참조 맥락: 반복문 섹션 마지막 — 배열(Arrays) 섹션으로 이어짐.

📚 출처 (Sources)

• [S1] W3Schools — C Break and Continue — https://www.w3schools.com/c/c_break_continue.php

📝 변경 이력 (Change history)

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