📅  最后修改于: 2023-12-03 15:06:25.183000             🧑  作者: Mango
XOR_EQ
is a compound assignment operator in C++, which stands for "exclusive OR and assign". This operator is used to perform an XOR operation between the left-hand side (LHS) and right-hand side (RHS) operands and then assign the result back to the LHS.
The syntax for the XOR_EQ operator is as follows:
LHS ^= RHS;
where LHS is the left-hand side operand and RHS is the right-hand side operand.
XOR_EQ can be used with many data types in C++, such as integers, characters, and Boolean values. For example:
int a = 5;
int b = 3;
a ^= b; // a now equals 6 (binary 0110)
In the above example, the XOR operation is performed on the binary representations of a
(0101) and b
(0011) to produce the result 0110, which is then assigned back to a
.
It is important to note that XOR_EQ is not the same as the logical XOR operator, which is denoted by ||
in C++. The logical XOR operator returns true
if either of the operands is true
, but not both. XOR_EQ, on the other hand, performs the bitwise XOR operation between the operands.
In summary, XOR_EQ is a useful operator in C++ that allows developers to quickly perform a bitwise XOR operation and assign the result back to the LHS operand. It is especially useful when working with binary data or encryption algorithms.