C/C++ language provides asimple assignment operatorthat is"=", but some of the otherassignment operators(which are the combination of assignment and other operators) can be used. The assignment operators are, N
0 - This is a modal window. No compatible source was found for this media. Output When you compile and execute the above program, it will produce the following result − Line 1 - = Operator Example, Value of c = 21 Line 2 - += Operator Example, Value of c = 42 Line 3 - -=...
赋值操作将右侧操作数的值分配给左侧操作数命名的存储位置。 因此,赋值操作的左侧操作数必须是一个可修改的左值。 在赋值后,赋值表达式具有左操作数的值,但不是左值。 语法 assignment-expression? conditional-expression unary-expressionassignment-operatorassignment-expression ...
assignment-operator:以下项之一 = *= /= %= += -= <<= >>= &= ^= |= 结构声明符、枚举数、直接声明符、直接抽象声明符和标记语句的非终止符包含 constant-expression 非终止符。 整型常数表达式必须用于指定结构的位域成员的大小、枚举常数的值、数组的大小或 case 常数的值。 预处理器指令中使用的...
storage_class_specifier: typedef | extern | static | auto | register type_specifer: void | char | short | int | long | float | double | signed | unsigned | struct_or_union_specifer | enum_specifier | typedef_name struct_or_union_specifer: ...
&= Bitwise AND assignment operator It performs bitwise AND and then result is assigned to left hand operand I &= 5that means I = I & 5 ^= bitwise exclusive OR and assignment operator It performs bitwise exclusive OR and then result is assigned to left hand operand I ^= 5that means I...
'class' : assignment operator could not be generated The compiler cannot generate an assignment operator for the given class. No assignment operator was created. An assignment operator for the base class that is not accessible by the derived class can cause this warning. ...
<declaration-specifier> ::= <storage-class-specifier> //类的定义 | <type-specifier> | <type-qualifier> <存储类说明符>::=“自动” //存储说明符auto register static extern说明的四种存储类型,四种存储类别说明符有两种存储期:自动存储期和静态存储期 ...
1.前向迭代器(Forward iterator) 只能够以累加操作符(iterator operator)向前迭代。class forward_list的迭代器。 unordered_set 、unordered_multiset、unordered_map、unordered_multimap 2.双向迭代器(Bidirectional iterator) 以递增(increment)运算前进或以递减(decrement)运算后退。 list、set 、multiset、map、multimap...