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What is a Memory Heap?

... Presumably you mean heap from a memory allocation point of view, not from a data structure point of view (the term has multiple meanings). A very simple explanation is that the heap is the portion of memory where dynamically allocated memory resides (i.e. memory allocated via...
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How to get a index value from foreach loop in jstl

I have a value set in the request object like the following, 5 Answers 5 ...
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How do I convert a NSString into a std::string?

I have an NSString object and want to convert it into a std::string . 3 Answers 3 ...
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Does Flask support regular expressions in its URL routing?

I understand that Flask has the int, float and path converters, but the application we're developing has more complex patterns in its URLs. ...
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Redis: possible to expire an element in an array or sorted set?

...alues to a List type structure and have them get auto removed 1 hour after insertion. Is that currently possible, or would it require running a cron job to do the purging manually? ...
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Repeatedly run a shell command until it fails?

...stop the loop when ./runtest returns a nonzero exit code (which is usually indicative of failure). To further simplify your current solution though, you should just change your untilfail script to look like this: #!/bin/bash while "$@"; do :; done And then you can call it with whatever command ...
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Why can I pass 1 as a short, but not the int variable i?

...he last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind. ...
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Responsive website zoomed out to full width on mobile

I am testing out Bootstrap responsiveness navbar and I have a demo website. When I resize the browser on a desktop, it all works fine including the nav bar which become collapsible menu with a small icon on the top which I can click to see more menu buttons. ...
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?

...ed to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be? ...
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Get distance between two points in canvas

I have canvas drawing tab and want lineWidth to be based on distance between two last mousemove coordinate updates. I will make translation of distance to width myself, I just need to know how to get distance between those points (I already have coordinates of those pointes). ...