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What does && mean in void *p = &&abc;
I came across a piece of code void *p = &&abc; . What is the significance of && here?
I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ?
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What is the difference between the kernel space and the user space?
What is the difference between the kernel space and the user space? Do kernel space, kernel threads, kernel processes and kernel stack mean the same thing? Also, why do we need this differentiation?
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what is the difference between a portlet and a servlet?
I am asked to work on portlets and portals.
5 Answers
5
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Observer Design Pattern vs “Listeners”
It seems to me that the Observer design pattern as described in GOF is really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
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How to capture UIView to UIImage without loss of quality on retina display
My code works fine for normal devices but creates blurry images on retina devices.
17 Answers
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How can I push a local Git branch to a remote with a different name easily?
I've been wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names.
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How update the _id of one MongoDB Document?
I want update an _id field of one document. I know it's not a really good pratice. But with some technical reason, I need update it. If I try to update it I get:
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How to reference the initial commit?
I've got a script that needs to reference the initial commit in a repository. git has the special reference HEAD , but doesn't have the corresponding TAIL . I cannot find anything in git help rev-parse that would seem to help me.
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How do you create nested dict in Python?
I have 2 CSV files: 'Data' and 'Mapping':
4 Answers
4
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Selecting multiple columns in a pandas dataframe
I have data in different columns but I don't know how to extract it to save it in another variable.
18 Answers
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