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Is std::vector so much slower than plain arrays?

... So array is twice as quick as vector. But after looking at the code in more detail this is expected; as you run across the vector twice and the array only once. Note: when you resize() the vector you are not only allocating the memory but also running through the vector and calling the construct...
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Viewing unpushed Git commits

...n/master..HEAD --oneline" so that I can quickly find out where I am. Even more candy: for i in *; do echo $i && git ahead 2>/dev/null; done – Jamie Feb 28 '12 at 2:50 1...
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Java equivalent to C# extension methods

... Extension methods can make code much more elegant compared to extra static methods from some other class. Almost all more modern languages allow for some kind existing class extension: C#, php, objective-c, javascript. Java surely shows its age here. Imagine you...
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Where could I buy a valid SSL certificate? [closed]

...nfrastructure but certs from a CA that's shipped with the browser are much more secure. – jcoffland Jan 27 '15 at 7:39 6 ...
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How to get root access on Android emulator?

...in production builds". Are you using a particular emulator? Please provide more details. – orodbhen Jul 22 '17 at 1:48 ...
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What is Java Servlet?

...  |  show 14 more comments 108 ...
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How to vertically center content with variable height within a div?

... This should have much more upvotes! By the way, it also works with position: absolute, doesn't it? – caw Feb 3 '16 at 5:40 4 ...
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How to add calendar events in Android?

...ndar? Which calendar? Is there a common API they all share? No, no more than there is a "common API they all share" for Windows calendar apps. There are some common data formats (e.g., iCalendar) and Internet protocols (e.g., CalDAV), but no common API. Some calendar apps don't even offer an...
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How to get the next auto-increment id in mysql

...d to retrieve the data from information_schema.tables, this solution do no more work for mysql 8. – Bruno Feb 6 '19 at 16:39 1 ...
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Random number generator only generating one random number

...e from multiple threads, you could argue "we've just made the outcome even more random", but what we are actually doing is potentially breaking the internal implementation, and we could also start getting the same numbers from different threads, which might be a problem - and might not. The guarante...