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What is the purpose of static keyword in array parameter of function like “char s[static 10]”?
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The first declaration tells the compiler that someArray is at least 100 elements long. This can be used for optimizations. For example, it also means that someArray is never NULL.
Note that the C Standard does not require the compiler to diagnose when a call to the function does not meet the...
Python dictionary: Get list of values for list of keys
..., 1:11, 2:12, 3:13}
In[3]: %timeit [m[_] for _ in l] # list comprehension
1000000 loops, best of 3: 762 ns per loop
In[4]: %timeit map(lambda _: m[_], l) # using 'map'
1000000 loops, best of 3: 1.66 µs per loop
In[5]: %timeit list(m[_] for _ in l) # a generator expression passed to a list constr...
How can I get a JavaScript stack trace when I throw an exception?
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+100
Edit 2 (2017):
In all modern browsers you can simply call: console.trace(); (MDN Reference)
Edit 1 (2013):
A better (and simpler)...
App Inventor 2 NFC应用教程 - 读取NFC标签与门禁卡 · App Inventor 2 中文网
... 概述
⚠️ 重要限制
NFC组件
组件位置
添加NFC扩展
读取NFC标签
基本读取
读取标签UID
读取NDEF内容
写入NFC标签
写入文本
写入URL
实战案例：NFC门禁识...
How to print a percentage value in python?
...he explicit
# float conversion:
>>> print "{0:.0f}%".format(1/3 * 100)
33%
# Or even shorter using the format mini language:
>>> print "{:.0%}".format(1/3)
33%
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source of historical stock data [closed]
...atever format you want. I think the yearly subscription for data is a few $100 bucks.
The main problem with downloading data from a free service is that you only get stocks that still exist, this is called Survivorship Bias and can give you wrong results if you look at many stocks, because you'll ...
Loop backwards using indices in Python?
I am trying to loop from 100 to 0. How do I do this in Python?
15 Answers
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iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
...t presented view, it's back to it's original size.
– V1ru8
Apr 7 '11 at 15:38
It worked. But the word in the view look...
How to manually create icns files using iconutil?
...e OS versions that don't use ICNS files... No love for us who use OS10.6.8 V1.1... it's an even worse 'our way or the highway' for the devs than the users.
– Henrik Erlandsson
Sep 7 '12 at 12:19
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...double型，64bits，你不必担心Lua处理浮点数会慢（除非大于100,000,000,000,000），或是会有精度问题。
你可以以如下的方式表示数字，0x开头的16进制和C是很像的。
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num = 1024
num = 3.0
num = 3.1416...