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Filtering collections in C#
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241
If you're using C# 3.0 you can use linq, way better and way more elegant:
List<int> myLi...
Differences in boolean operators: & vs && and | vs ||
...e are the bitwise AND and bitwise OR operators.
int a = 6; // 110
int b = 4; // 100
// Bitwise AND
int c = a & b;
// 110
// & 100
// -----
// 100
// Bitwise OR
int d = a | b;
// 110
// | 100
// -----
// 110
System.out.println(c); // 4
System.out.println(d); // 6
Thanks to...
OnInitUpdate、OnUpdate、OnDraw与OnPaint - C/C++ - 清泛网 - 专注C/C++及内核技术
...产生WM_PAINT消息，这时OnDraw 也被间接调用。
OnUpdate 是CView提供的一个方法，一般当文档修改时调用，应用程序框架在CView::OnInitialUpdate 和CDocument::UpdateAllViews 的默认实现中都会调用。
OnUpdate，OnUpdate的默认实现是通过Invalidate产...
Defining static const integer members in class definition
...you need a reference you also need a definition.
Here's chapter/verse:
9.4.2/4 - If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify a constant-initializer which shall be an integral constant expression (5.19). In that case, ...
How can I detect if the user is on localhost in PHP?
... |
edited Feb 21 '14 at 2:19
answered Jan 12 '10 at 23:37
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Open a file with su/sudo inside Emacs
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64
The nice thing about Tramp is that you only pay for that round-trip to SSH when you open the fir...
How to pretty print XML from the command line?
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940
libxml2-utils
This utility comes with libxml2-utils:
echo '<root><foo a="b">lorem...
Is R's apply family more than syntactic sugar?
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154
The apply functions in R don't provide improved performance over other looping functions (e.g. f...
Python multiprocessing pool.map for multiple arguments
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answered Mar 26 '11 at 14:36
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What is the “continue” keyword and how does it work in Java?
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419
A continue statement without a label will re-execute from the condition the innermost while or...