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Is there a performance difference between i++ and ++i in C++?
We have the question is there a performance difference between i++ and ++i in C?
17 Answers
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Indent multiple lines quickly in vi
It should be trivial, and it might even be in the help, but I can't figure out how to navigate it. How do I indent multiple lines quickly in vi?
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What is the “right” way to iterate through an array in Ruby?
...arts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do
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What is the purpose of mock objects?
I am new to unit testing, and I continously hear the words 'mock objects' thrown around a lot. In layman's terms, can someone explain what mock objects are, and what they are typically used for when writing unit tests?
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Difference between freeze and seal
I just heard about the JavaScript methods freeze and seal , which can be used to make any Object immutable.
8 Answers
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Why can Java Collections not directly store Primitives types?
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It was a Java design decision, and one that some consider a mistake. Containers want Objects and primitives don't derive from Object.
This is one place that .NET designers learned from the JVM and implemented value types and generics such that boxing is e...
Really weird eclipse keyboard behavior/bug?
...os on Mac Snow Leopard. I don't know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but the rest of the buttons works just fine. There is no exception/error thrown anywhere on the screen. I don't exactly know how to reproduce this ...
Use of Application.DoEvents()
...same kind of wisdom as "don't mutate a struct". Erm, why does the runtime and the language supports mutating a struct if that's so bad? Same reason: you shoot yourself in the foot if you don't do it right. Easily. And doing it right requires knowing exactly what it does, which in the case of DoE...
HTTP vs HTTPS performance
Are there any major differences in performance between http and https? I seem to recall reading that HTTPS can be a fifth as fast as HTTP. Is this valid with the current generation webservers/browsers? If so, are there any whitepapers to support it?
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How to “return an object” in C++?
...t of the problem (I know the difference between having things on the stack and putting them on the heap).
8 Answers
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