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CPU Privilege Rings: Why rings 1 and 2 aren't used?
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As a hobbyist operating system writer, I found that because paging (a major part of the modern protection model) only has a concept of privileged (ring 0,1,2) and unprivileged, the benefit to rings 1 and 2 were diminished greatly.
The intent by Intel in...
Case insensitive access for generic dictionary
I have an application that use managed dlls. One of those dlls return a generic dictionary:
3 Answers
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Following git-flow how should you handle a hotfix of an earlier release?
If you try to follow the git-flow branching model, documented here and with tools here , how should you handle this situation:
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sed: print only matching group
I want to grab the last two numbers (one int, one float; followed by optional whitespace) and print only them.
5 Answers
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How can I format a String number to have commas and round?
What is the best way to format the following number that is given to me as a String?
10 Answers
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NULL vs nil in Objective-C
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nil should only be used in place of an id, what we Java and C++ programmers would think of as a pointer to an object. Use NULL for non-object pointers.
Look at the declaration of that method:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)cha...
How to pass multiple parameters in a querystring
I have three values which I have to pass as parameters for e.g., strID , strName and strDate .
6 Answers
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What are the reasons why Map.get(Object key) is not (fully) generic
What are the reasons behind the decision to not have a fully generic get method
in the interface of java.util.Map<K, V> .
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What does it mean to start a PHP function with an ampersand?
I'm using the Facebook library with this code in it:
3 Answers
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SQL query to find record with ID not in another table
I have two tables with binding primary key in database and I desire to find a disjoint set between them. For example,
6 Ans...