---
id: csharp-operators-assignment
title: "C# Assignment Operators"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["+= -= *= C#", "compound assignment C#", "C# 대입 연산자"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.83
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["csharp", "programming-language", "w3schools", "operators", "assignment"]
raw_sources: ["https://www.w3schools.com/cs/cs_operators_assignment.php"]
applied_in: []
github_commit: ""
---

# [[CSharp Assignment Operators]]

## 🎯 한 줄 통찰 (One-line insight)
All 11 compound assignment operators listed here — including the bitwise ones (`&= |= ^= >>= <<=`) — are identical in symbol and "same as" expansion to C/C++'s set, confirming that C#'s bitwise operator support (and its assignment-operator shorthand) was inherited wholesale rather than redesigned, despite C# otherwise being a managed, higher-level language than C/C++. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`=`** — basic assignment. [S1]
- **`+= -= *= /= %=`** — arithmetic compound assignment; each `x op= y` expands to `x = x op y`. [S1]
- **`&= |= ^=`** — bitwise AND/OR/XOR compound assignment. [S1]
- **`>>= <<=`** — bitwise right-shift/left-shift compound assignment. [S1]
- Every compound operator is pure shorthand — no operator introduces new semantics beyond "apply the operation, then reassign." [S1]

## 📖 세부 내용 (Details)
- Basic assignment: `int x = 10;`. [S1]
- Addition assignment: `int x = 10; x += 5;` → `x` becomes 15. [S1]
- Full expansion table: `x = 5` → `x = 5`; `x += 3` → `x = x + 3`; `x -= 3` → `x = x - 3`; `x *= 3` → `x = x * 3`; `x /= 3` → `x = x / 3`; `x %= 3` → `x = x % 3`; `x &= 3` → `x = x & 3`; `x |= 3` → `x = x | 3`; `x ^= 3` → `x = x ^ 3`; `x >>= 3` → `x = x >> 3`; `x <<= 3` → `x = x << 3`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
- **비트 연산 대입 연산자까지 C/C++와 동일**: `&= |= ^= >>= <<=`를 포함한 11개 대입 연산자 전체가 C/C++의 집합과 기호·확장 규칙이 동일하다는 점이 확인됨 — C#이 매니지드 런타임 위에서 동작하는 상위 언어임에도 비트 연산 지원을 그대로 계승했음을 보여줌. [S1]

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — `x += 5;` 하나의 덧셈 대입 예제가 원문에서 제시됨. [S1]

## 💻 코드 패턴 (Code patterns)
Compound assignment shorthand — identical to C/C++ (C#):
```csharp
int x = 10;
x += 5;   // same as x = x + 5; -> x is now 15
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.83
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[C# Tutorial]]
- **관련 개념:** [[CSharp Operators]], [[CSharp Operators Comparison]], [[CPP Operators Assignment]]
- **참조 맥락:** Operators 섹션 — Comparison Operators 챕터로 이어짐.

## 📚 출처 (Sources)
- [S1] W3Schools — C# Assignment Operators — https://www.w3schools.com/cs/cs_operators_assignment.php

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "C# Assignment Operators" page (Astra wiki-curation, P-Reinforce v3.1 format).