C++ 提供多樣、功能完整的運算子，依運算子結合後運算的優先次序 (precedence) ，如下列表
| 運算子 | 結合規則 | |
|---|---|---|
| 1 | :: | 左到右 |
| 2 | () | 左到右 |
| [] | ||
| -> | ||
| . | ||
| ++ | ||
| -- | ||
| dynamic_cast | ||
| static_cast | ||
| reinterpret_cast | ||
| const_cast | ||
| typeid | ||
| 3 | ! | 右到左 |
| not | ||
| ~ | ||
| compl | ||
| ++ | ||
| -- | ||
| - | ||
| + | ||
| * | ||
| & | ||
| sizeof | ||
| new | ||
| new [] | ||
| delete | ||
| delete [] | ||
| (type) | ||
| 4 | ->* | 左到右 |
| .* | ||
| 5 | * | 左到右 |
| / | ||
| % | ||
| 6 | + | 左到右 |
| - | ||
| 7 | << | 左到右 |
| >> | ||
| 8 | < | 左到右 |
| <= | ||
| > | ||
| >= | ||
| 9 | == | 左到右 |
| eq | ||
| != | ||
| not_eq | ||
| 10 | & | 左到右 |
| bitand | ||
| 11 | ^ | 左到右 |
| xor | ||
| 12 | | | 左到右 |
| bitor | ||
| 13 | && | 左到右 |
| and | ||
| 14 | || | 左到右 |
| or | ||
| 15 | ?: | 右到左 |
| 16 | = | 右到左 |
| += | ||
| -= | ||
| *= | ||
| /= | ||
| %= | ||
| &= | ||
| and_eq | ||
| ^= | ||
| xor_eq | ||
| |= | ||
| or_eq | ||
| <<= | ||
| >>= | ||
| 17 | throw | |
| 18 | , | 左到右 |
包括算術運算子 (arithmetic operator) 、遞增 (increment) 及遞減運算子 (decrement operator) 、關係運算子 (relational operator) 、邏輯運算子 (logical operator) 、位元運算子 (bitwise operator) 、指派運算子 (assignment operator) 、條件運算子 (conditional operator) 等等。
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