Files
2nd/10_Wiki/Dev/Topic_C/C_Syntax.md
T
Antigravity Agent 1cfd3bbb56 docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화
Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고,
Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
2026-07-05 00:10:59 +09:00

3.3 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
c-syntax C Syntax Programming_Language draft conceptual
main function
include stdio
C 문법
B 0.86 2026-07-04 2026-07-04
c
programming-language
w3schools
syntax
https://www.w3schools.com/c/c_syntax.php

C Syntax

🎯 한 줄 통찰 (One-line insight)

The compiler is explicitly indifferent to whitespace and line breaks — the source shows the ENTIRE main() body collapsible onto a single line (int main(){printf("Hello World!");return 0;}) and produces identical behavior — meaning C's multi-line formatting convention exists purely for human readability, not because the language requires it, unlike languages where indentation/newlines are syntactically meaningful. [S1]

🧠 핵심 개념 (Core concepts)

  • #include <stdio.h> — includes a header enabling input/output functions like printf(); described as something that "almost always appears" in a C program. [S1]
  • main() — the special function where program execution begins; code inside its {} is what actually runs. [S1]
  • Statement termination — every C statement must end with a semicolon ;. [S1]
  • return 0 — ends main() and sends a value back to the operating system; 0 conventionally signals "everything worked." [S1]
  • Whitespace insignificance — blank lines and extra spaces are ignored by the compiler; used only to aid human readability. [S1]

📖 세부 내용 (Details)

  • Standard multi-line form: #include <stdio.h> int main() { printf("Hello World!"); return 0; }. [S1]
  • Equivalent single-line form (compiler behaves identically): int main(){printf("Hello World!");return 0;}. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

  • 줄바꿈/공백은 순전히 가독성 목적: 컴파일러가 여러 줄로 쓰인 코드와 한 줄로 압축한 코드를 동일하게 처리한다는 점이 직접적인 코드 비교로 증명됨. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 이 챕터의 문장 단위 분해 설명이 이후 모든 C 코드를 읽는 기초 독해 능력의 토대가 된다. [S1]

💻 코드 패턴 (Code patterns)

The canonical C program structure, annotated line by line:

#include <stdio.h>

int main() {
  printf("Hello World!");
  return 0;
}

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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

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