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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...对，可以这么写：
struct foo { int x[2] __attribute__ ((aligned (8))); }; 如上所述，你可以手动指定对齐的格式，同样，你也可以使用默认的对齐方式。如果aligned后面不紧跟一个指定的数字值，那么编译器将依据你的目标机器 情况使用...
What is the difference between square brackets and parentheses in a regex?
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These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]\d{9}$/
The explanation:
(a|b|c) is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you...
How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
... 2
0 0 1 2
1 0 NaN 0
2 0 0 NaN
3 0 1 2
4 0 1 2
In [58]: pd.isnull(df)
Out[58]:
0 1 2
0 False False False
1 False True False
2 False False True
3 False False False
4 False False False
In [59]: pd.isnull(df).any(axis=1)
Out[59]:
0 False
1 ...
Is there a way to measure how sorted a list is?
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answered Jun 8 '13 at 0:21
Timothy ShieldsTimothy Shields
61.7k1717 gold badges103103 silver badges154154 bronze badges
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How to install Java 8 on Mac
I want to do some programming with the latest JavaFX, which requires Java 8. I'm using IntelliJ 13 CE and Mac OS X 9 Mavericks. I ran Oracle's Java 8 installer, and the files look like they ended up at
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Differences between Java 8 Date Time API (java.time) and Joda-Time
...d a thread about the differences between the java.time API (new in Java 8 , defined by JSR 310 ) and Joda-Time .
3 Ans...
Python: changing value in a tuple
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184
First you need to ask, why you want to do this?
But it's possible via:
t = ('275', '54000', '...
Java 8 functional interface with no arguments and no return value
What is the Java 8 functional interface for a method that takes nothing and returns nothing?
3 Answers
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How do I create a list of random numbers without duplicates?
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185
This will return a list of 10 numbers selected from the range 0 to 99, without duplicates.
imp...
Adjusting Eclipse console size
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0xCursor
2,21844 gold badges1212 silver badges2828 bronze badges
answered Apr 8 '10 at 14:29
MelMel
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