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Under what circumstances are linked lists useful?
... with a single CAS (+retries).
In a modern GC-d environment - such as Java and .NET - the ABA problem can easily be avoided.
Just wrap items you add in freshly created nodes and do not reuse those nodes - let the GC do its work.
The page on the ABA problem also provides the implementation of a lock...
Ideal way to cancel an executing AsyncTask
I am running remote audio-file-fetching and audio file playback operations in a background thread using AsyncTask . A Cancellable progress bar is shown for the time the fetch operation runs.
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Synchronise ScrollView scroll positions - android
I have 2 ScrollViews in my android layout. How can I synchronise their scroll positions?
4 Answers
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Best way to check if object exists in Entity Framework?
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if (context.MyEntity.Any(o => o.Id == idToMatch))
{
// Match!
}
And in vb.net
If context.MyEntity.Any(function(o) o.Id = idToMatch) Then
' Match!
End If
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Java: Instanceof and Generics
...Object(Class<T> type) {
return new MyObject<T>(type);
}
And then in the object's constructor store that type, so variable so that your method could look like this:
if (arg0 != null && !(this.type.isAssignableFrom(arg0.getClass()))
{
return -1;
...
std::string to float or double
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The Standard Library (C++11) offers the desired functionality with std::stod :
std::string s = "0.6"
std::wstring ws = "0.7"
double d = std::stod(s);
double dw = std::stod(ws);
Generally for most other basic types, see <st...
How to flip background image using CSS?
...problem in this. it's flipping the text also which is inside the <a> and I only want to flip the background image. The code you give is to flip the whole element
– Jitendra Vyas
Apr 24 '11 at 6:41
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Iterating C++ vector from the end to the beginning
... ++i ) {
}
rbegin()/rend() were especially designed for that purpose. (And yes, incrementing a reverse_interator moves it backward.)
Now, in theory, your method (using begin()/end() & --i) would work, std::vector's iterator being bidirectional, but remember, end() isn't the last element —...
How to go to a specific file in Chrome Developer Tools?
...eveloping a web application with a heavy front-end approach. By using Dojo and the AMD-way, I currently have testing screens which may easily load over a hundred different javascript files.
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How to redirect output of an entire shell script within the script itself?
...ll of the output of a Bourne shell script to somewhere, but with shell commands inside the script itself?
5 Answers
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