位运算技巧
嗨，
使用按位运算有哪些巧妙的技巧。我知道除非您使用 C 语言编程，否则您不会遇到太多位级操作。尽管如此，您仍然可以在更高级别的语言中应用一些巧妙的技巧。以下是我已经知道的一些。
什么还有其他一些吗？
Possible Duplicate:
What USEFUL bitwise operator code tricks should a developer know about?
Hi,
What are some neat tricks with using bit-wise operations. I know that unless you're programming in C you won't have much encounters with operating on bit level. Nonetheless, there are some neat tricks that you can apply in even higher level languages. Here are a few that I already know.
- bit mask: Can hold a collection of boolean values
- XOR Swap: Swap 2 values in place without a third variable
- XOR Linked List: Create a doubly linked list with each node only hold one address value
What are some others?
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判断一个数是否为奇数
find whether a number is odd or not