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How to write a simple database engine [closed]
... database engine works (i.e. the internals of it). I know most of the basic data structures taught in CS (trees, hash tables, lists, etc.) as well as a pretty good understanding of compiler theory (and have implemented a very simple interpreter) but I don't understand how to go about writing a data...
Replace non-ASCII characters with a single space
I need to replace all non-ASCII (\x00-\x7F) characters with a space. I'm surprised that this is not dead-easy in Python, unless I'm missing something. The following function simply removes all non-ASCII characters:
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How to style the option of an html “select” element?
...nswer your question here:
Except for background-color and color, style settings applied through the style object for the option element are ignored.
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Why does the use of 'new' cause memory leaks?
I learned C# first, and now I'm starting with C++. As I understand, operator new in C++ is not similar to the one in C#.
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How to assign a Git SHA1's to a file without Git?
...assigns a SHA1 hash to a file this SHA1 is unique to the file based on its contents.
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How do I check that multiple keys are in a dict in a single pass?
...ltimately ended up using this solution. It seemed the best for larger datasets. When checking for say 25 or 30 keys.
– user131465
Aug 17 '09 at 4:37
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Begin, Rescue and Ensure in Ruby?
I've recently started programming in Ruby, and I am looking at exception handling.
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How can I measure the similarity between two images? [closed]
I would like to compare a screenshot of one application (could be a Web page) with a previously taken screenshot to determine whether the application is displaying itself correctly. I don't want an exact match comparison, because the aspect could be slightly different (in the case of a Web app, depe...
How is an overloaded method chosen when a parameter is the literal null value?
I came across this question in a quiz,
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Comment Inheritance for C# (actually any language)
Suppose I have this interface
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