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Change values while iterating
... to n.Attr[i] explicitly in both the line that tests Key and the line that sets Val, rather than using attr for one and n.Attr[i] for the other.
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What are Transient and Volatile Modifiers?
... marked transient.
Note 2) When deserialized process taken place they get set to the default value - zero, false, or null as per type constraint.
Note 3) Transient keyword and its purpose?
A field which is declare with transient modifier it will not take part in serialized process.
When an object ...
grep a file, but show several surrounding lines?
...
For BSD or GNU grep you can use -B num to set how many lines before the match and -A num for the number of lines after the match.
grep -B 3 -A 2 foo README.txt
If you want the same number of lines before and after you can use -C num.
grep -C 3 foo README.txt
Th...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...lso optimized for allocations and collections. The reason is it has memory set aside for large objects. Instead of putting everything in the same heap,
and then having to find space for large objects amidst all the tiny ones, ART puts all the large objects and bitmaps in a separate heap. And then th...
How to get error information when HttpWebRequest.GetResponse() fails
...ply catch and write the exception text into the body of the response, then set status code to 500. Now the client would throw an exception when it encounters a 500 error but you could read the response stream and fetch the message of the exception.
So you could catch a WebException which is what wi...
Watermark / hint text / placeholder TextBox
... <Style x:Key="EntryFieldStyle" TargetType="Grid" >
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Margin" Value="20,0" />
</Style>
<...
HTTPS with Visual Studio's built-in ASP.NET Development Server
... Thanks Sergey. I couldn't find that since it doesn't show in the project settings page. Only underneath the solution explorer when you press F4!
– Norbert Norbertson
Mar 4 at 10:00
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Change branch base
...
I had a slightly different approach using reset and stashes that avoids deleting and re-creating branches as well as eliminating the need to switch branches:
$ git checkout PRO
$ git reset commit4 # This will set PROs HEAD to be at commit 4, and leave the modified com...
When serving JavaScript files, is it better to use the application/javascript or application/x-javas
...ou say that "application/javascript" will not work, do you mean if that is set as the content type on the HTTP response or as the "type" attribute of a script tag? The original question was on content type on HTTP responses. Based on other answers it looks like only the value of the "type" attribu...
内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ddress = sbrk(0);
/* we don't have any memory to manage yet, so
*just set the beginning to be last_valid_address
*/
managed_memory_start = last_valid_address;
/* Okay, we're initialized and ready to go */
has_initialized = 1;
}
现在,为了完全地管理内存,我们需要...
