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What are copy elision and return value optimization?
...If you want to avoid possible copy elision, use -fno-elide-constructors.
Now almost all compilers provide copy elision when optimisation is enabled (and if no other option is set to disable it).
Conclusion
With each copy elision, one construction and one matching destruction of the copy are om...
How to increase the vertical split window size in Vim
...
This is what I am using as of now:
nnoremap <silent> <Leader>= :exe "resize " . (winheight(0) * 3/2)<CR>
nnoremap <silent> <Leader>- :exe "resize " . (winheight(0) * 2/3)<CR>
nnoremap <silent> <Leader>0 :ex...
Eclipse Workspaces: What for and why?
...plorer) won't appear anymore and projects associated with workspace B will now appear. So it seems that a project, to be open in Eclipse, MUST be associated to a workspace.
Notice that this doesn't mean that the project source code must be inside the workspace. The workspace will, somehow, have a re...
How to add a button to PreferenceScreen
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I know this is a bit late, but I just found a solution i like better than Max's praised solution.
You can simply add a footer (or if you like the button to be on top, a header) to the PreferenceActivity's ListView like so:
pub...
Pointers vs. values in parameters and return values
...base interfaces or serializers need to append to a slice whose type isn't known at compile time. They sometimes accept a pointer to a slice in an interface{} parameter.
Maps, channels, strings, and function and interface values, like slices, are internally references or structures that contain ref...
When would you use a WeakHashMap or a WeakReference?
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Article now at web.archive.org/web/20061130103858/http://weblogs.java.net/blog/…
– mjn42
Jan 30 '19 at 8:38
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What is the simplest SQL Query to find the second largest value?
... BY `column`
ORDER BY `column` DESC
LIMIT 1,1
Update:
SQL Server 2012 now supports a much cleaner (and standard) OFFSET/FETCH syntax:
SELECT TOP 2 [column]
FROM [Table]
GROUP BY [column]
ORDER BY [column] DESC
OFFSET 1 ROWS
FETCH NEXT 1 ROWS ONLY;
...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...produce types to which we wouldn't normally want to assign names. (Yes, I know that anonymous types with the same types and named properties are consolidated by the compiler).
My rule of thumb is: if you will return it from your public interface - make it a named type.
My other rule of thumb for ...
Retrieving a random item from ArrayList [duplicate]
...;
return it;
}
the return statement basically says the function will now end. anything included beyond the return statement that is also in scope of it will result in the behavior you experienced
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Visual Studio retrieving an incorrect path to a project from somewhere
...icular Solution. Previously, I had a laptop with a separate D: drive, but now, I just have a C: drive. TFS still thought my project was stored on D:\Project\MikesProject
I didn't have a .suo file to delete, the D: path wasn't mentioned anywhere in my Workspaces (buried away under the File\Source ...