@Test public void givenOneNegativeInteger_whenLeftShiftOperator_thenNewDecimalNumber() { int value = -12; int leftShift = value << 2; assertEquals(-48, leftShift); } 4.2. Signed Right Shift [>>] The right shift operator shifts all the bits to the right. The empty space in the left sid...
按位“非”(~ ,也称为取补运 算,ones compliement operator )属于一元操作符;它只对一个操作数进行操作(其他位操 作是二元运算)。按位“非”生成与输入位相反的值——若输入 0,则输出 1;输入 1,则输 出 0。 位操作符和逻辑操作符都使用了同样的符号。因此,我们能方便地记住它们的含义:由于“位” ...
& the AND Operator (与运算符) ^ the XOR Operator (异或运算符) ~ the NOT Operator(非运算符) 以下是《Thinking in java》中的描述: The bitwise NOT (~, also called the ones complement operator) is a unary operator; it takes only one argument. (All other bitwise operators are binary operat...
The arithmetic right shift>>or signed right shift preserves the sign (positive or negative numbers) after bits shift. This>>operator fills all the left empty positions with the original most significant bit (the first bit on the left). 算术右移>>或带符号的右移会保留位移位后的符号(正数或负...
Bitwise AND Operator The bitwise AND & operator returns 1 if and only if both the operands are 1. Otherwise, it returns 0. The bitwise AND operation on a and b can be represented in the table below: aba & b 0 0 0 0 1 0 1 0 0 1 1 1 Note: The table above is known as the...
The operators discussed in this section are less commonly used. Therefore, their coverage is brief; the intent is to simply make you aware that these operators exist. The unary bitwise complement operator "~" inverts a bit pattern; it can be applied to any of the integral types, making ...
|= performs an in-place operation (原地运算符) between pairs of objects. In particular, between: sets: a union operation dicts: an update operation counters: a union (of multisets) operation numbers: a bitwise OR, binary operation In most cases, it is related to the | operator. See examp...
The &^ operator is bit clear (AND NOT): in the expression z = x &^ y, each bit of z is 0 if the corresponding bit of y is 1; otherwise it equals the corresponding bit of x. 即z = x &^ y运算相当于先把y取反(针对y的每个...
OperatorNameDescription &ANDSets each bit to 1 if both bits are 1 |ORSets each bit to 1 if one of two bits is 1 ^XORSets each bit to 1 if only one of two bits is 1 ~NOTInverts all the bits <<Zero fill left shiftShifts left by pushing zeros in from the right and let the ...
Note: If you’re coming from another programming language such as Java, then you’ll immediately notice that Python is missing the unsigned right shift operator denoted by three greater-than signs (>>>). This has to do with how Python represents integers internally. Since integers in Python...