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How to reverse a singly linked list using only two pointers?
... if there exists some logic to reverse a singly-linked list using only two pointers.
33 Answers
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When is SQLiteOpenHelper onCreate() / onUpgrade() run?
I have created my tables in my SQLiteOpenHelper onCreate() but receive
15 Answers
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How do I close a connection early?
I'm attempting to do an AJAX call (via JQuery) that will initiate a fairly long process. I'd like the script to simply send a response indicating that the process has started, but JQuery won't return the response until the PHP script is done running.
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Benefit of using Parcelable instead of serializing object
As I understand, Bundle and Parcelable belongs to the way Android performs serialization in. It is used for example in passing data between activities. But I wonder, if there are any benefits in using Parcelable instead of classic serialization in case of saving state of my business objects to...
C++0x has no semaphores? How to synchronize threads?
Is it true that C++0x will come without semaphores? There are already some questions on Stack Overflow regarding the use of semaphores. I use them (posix semaphores) all the time to let a thread wait for some event in another thread:
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How to modify existing, unpushed commit messages?
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Amending the most recent commit message
git commit --amend
will open your editor, allowing you to change the commit message of the most recent commit. Additionally, you can set the commit message directly in the command line with:
git commit --amend -m "New commit message"
…however, thi...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...r view controller may have the wrong class in your xib.
I downloaded your project.
The error you are getting is
'NSUnknownKeyException', reason: '[<UIViewController 0x3927310> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key string.'
It is caused b...
Delete last commit in bitbucket
I made a mistake and I don't know how to delete my latest push in the repository. I pull the latest updates of the app but it has conflicts and I push it to repository.
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How to write an async method with out parameter?
I want to write an async method with an out parameter, like this:
11 Answers
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How to detect if app is being built for device or simulator in Swift
In Objective-C we can know if an app is being built for device or simulator using macros:
20 Answers
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