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How to index into a dictionary?
...te that these methods create a list of all keys, values or items in Python 2.x. So if you need them more then once, store the list in a variable to improve performance.)
If you do care about the order of the entries, starting with Python 2.7 you can use collections.OrderedDict. Or use a list of p...
Calendar Recurring/Repeating Events - Best Storage Method
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Deleting elements from std::set while iterating
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This is implementation dependent:
Standard 23.1.2.8:
The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements.
Maybe you could try t...
How can I create a UIColor from a hex string?
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How do I check that multiple keys are in a dict in a single pass?
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answered Aug 17 '09 at 2:18
hughdbrownhughdbrown
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Get a specific bit from byte
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Easy. Use a bitwise AND to compare your number with the value 2^bitNumber, which can be cheaply calculated by bit-shifting.
//your black magic
var bit = (b & (1 << bitNumber-1)) != 0;
EDIT: To add a little more detail because there are a lot of similar answers with no expla...
What does the [Flags] Enum Attribute mean in C#?
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What's the simplest way to test whether a number is a power of 2 in C++?
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edited Dec 2 '15 at 3:59
jbranchaud
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... 1T 数据，压力太大了！在分给4个机器后，每个机器都是256G，则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了，为什么要分给四台机器呢？不要光想到存储空间，实际运行的数据库还有硬盘的读写...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
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Update:
You can now just run the following command from your terminal:
xcode-select --install...