C++运算符优先级

C++运算符优先级 Precedence Operator Description Associativity 1 :: Scope resolution Left-to-right 2 ++    -- Suffix/postfix increment and decrement () Function call [] Array subscripting . Element selection by reference −> Element selection through pointer 3 ++    -- Prefix increment and decrement Right-to-left +    − Unary plus and minus !    ~ Logical NOT and bitwise NOT ( type ) Type cast * Indirection (dereference) & Address-of sizeof Size-of new , new[] Dynamic memory allocation delete , delete[] Dynamic memory deallocation 4 .*    ->* Pointer to member Left-to-right 5 *    /    % Multiplication, division, and remainder 6 +    − Addition and subtraction 7 <<    >> Bitwise left shift and right shift 8 <    <= For relational operators < and ≤ respectively >    >= For relational operators > and ≥ respectively 9 ==    != For relational = and ≠ respectively 10 & Bitwise AND 11 ^ Bitwise XOR (exclusive or) 12 | Bitwise OR (inclusive or) 13 && Logical AND 14 || Logical OR 15 ?: Ternary conditional Right-to-Left 16 = Direct assignment (provided by default for C++ classes) +=    −= Assignment by sum and difference *=    /=    %= Assignment by product, quotient, and remainder <<=    >>= Assignment by bitwise left shift and right shift &=    ^=    |= Assignment by bitwise AND, XOR, and OR 17 throw Throw operator (for exceptions) 18 , Comma Left-to-right

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