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Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit
I'm writing StoreKit-related code, and I'm getting some rather troubling error codes when I try to add a purchase to the queue.
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
I'm reading some automated weather data from the web. The observations occur every 5 minutes and are compiled into monthly files for each weather station. Once I'm done parsing a file, the DataFrame looks something like this:
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What is the difference between vmalloc and kmalloc?
I've googled around and found most people advocating the use of kmalloc , as you're guaranteed to get contiguous physical blocks of memory. However, it also seems as though kmalloc can fail if a contiguous physical block that you want can't be found.
What are the advantages of having a contig...
What is the most effective way for float and double comparison?
What would be the most efficient way to compare two double or two float values?
31 Answers
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What's the difference between backtracking and depth first search?
What's the difference between backtracking and depth first search?
13 Answers
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How do I convert a String object into a Hash object?
I have a string which looks like a hash:
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Elegant way to invert a map in Scala
...o some inverted value->key lookups. I was looking for a simple way to do this, but came up with only:
10 Answers
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Unable to verify leaf signature
I'm using node.js request.js to reach an api. I'm getting this error
14 Answers
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Why are C++ inline functions in the header?
NB This is not a question about how to use inline functions or how they work, more why they are done the way they are.
8 An...
Xcode “Build and Archive” from command line
Xcode 3.2 provides an awesome new feature under the Build menu, "Build and Archive" which generates an .ipa file suitable for Ad Hoc distribution. You can also open the Organizer, go to "Archived Applications," and "Submit Application to iTunesConnect."
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