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What are the Dangers of Method Swizzling in Objective-C?
...y we've done swizzling above, it's pretty easy to understand. This one's already been solved!
Difficult to debug
One of the confusions during debugging is seeing a strange backtrace where the swizzled names are mixed up and everything gets jumbled in your head. Again, the alternative implementatio...
Concurrent vs serial queues in GCD
...lock that takes a minute to execute. You add it to a queue from the main thread. Let's look at the four cases.
async - concurrent: the code runs on a background thread. Control returns immediately to the main thread (and UI). The block can't assume that it's the only block running on that queue
as...
Why should C++ programmers minimize use of 'new'?
...u don't know how much memory you need at compile time. For instance, when reading a text file into a string, you usually don't know what size the file has, so you can't decide how much memory to allocate until you run the program.
You want to allocate memory which will persist after leaving the cu...
RESTful Authentication
... can't be used for it. I recommend the O'Reilly book on REST which is very readable and explains the subject in depth.
– johndodo
Jul 29 '11 at 6:38
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What are the differences between Generics in C# and Java… and Templates in C++? [closed]
I mostly use Java and generics are relatively new. I keep reading that Java made the wrong decision or that .NET has better implementations etc. etc.
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What really is a deque in STL?
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(This is an answer I've given in another thread. Essentially I'm arguing that even fairly naive implementations, using a single vector, conform to the requirements of "constant non-amortized push_{front,back}". You might be surprised, and think this is impossible, but...
What is the difference between bottom-up and top-down?
...ems" and "bottom-up" may be "compose the subproblems"). Previously, I have read on memoization being a different kind of dynamic programming as opposed to a subtype of dynamic programming. I was quoting that viewpoint despite not subscribing to it. I have rewritten this answer to be agnostic of the ...
Getting the closest string match
...useful Levenshtein distance algorithm on Wikipedia.
Implementation
After reading about the theory behind it, I implemented and found ways to optimize it. This is how my code looks like in VBA:
'Calculate the Levenshtein Distance between two strings (the number of insertions,
'deletions, and subs...
What are the underlying data structures used for Redis?
...t to store an HTML page, but also when you want to avoid converting your already encoded data. So for instance, if you have JSON or MessagePack you may just store objects as strings. In Redis 2.6 you can even manipulate this kind of object server side using Lua scripts.
Another interesting usage of...
Greedy vs. Reluctant vs. Possessive Quantifiers
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+1 Good answer. I would only add: Go read Mastering Regular Expressions (3rd Edition)
– ridgerunner
Mar 16 '11 at 3:53
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