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How to implement the factory method pattern in C++ correctly

...aged languages. If you want the convenience of automatic memory management start programming in Java or C# but don't put that mess into C/C++. – luke1985 Apr 19 '14 at 21:07 47 ...
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What is the difference between statically typed and dynamically typed languages?

...etc.). From another perspective, statically typed languages have more of a start-up cost: makes you usually write more code, harder code. But that pays later off. The good thing is both sides are borrowing features from the other side. Typed languages are incorporating more dynamic features, e.g.,...
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Reading/writing an INI file

... I used this approach for awhile, but security enhancements starting in Win7 have pretty much killed this for me. You can still use this approach, but you will have store the .ini in ProgramData and have your app read / write there. – Jess Sep 4...
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Reading binary file and looping over each byte

...e slice notation. For example, mm[i:i+len] returns len bytes from the file starting at position i. The context manager protocol is not supported before Python 3.2; you need to call mm.close() explicitly in this case. Iterating over each byte using mmap consumes more memory than file.read(1), but mma...
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How does facebook, gmail send the real time notification?

...t's a fair point, however this answer was written in 2009, before facebook started using hiphop. At the time facebook was still a very large-scaled system using php on it's own. – Alistair Evans Oct 16 '11 at 9:35 ...
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How can I use Spring Security without sessions?

...ks for my use case. I don't actually require that Spring Security doesn't start a session (because I use session in other parts of the application), just that it doesn't "remember" authentication in the session at all (it should be re-checked every request). To begin with, I wasn't able to figure ...
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Synchronization vs Lock

...e writing code whereas with a synchronized you are basically fine from the start. On this basis alone I would say synchronized is easier (given you want its behavior) than java.util.concurrent.locks.Lock. par 4 – Iwan Aucamp Jun 4 '14 at 14:50 ...
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How to select different app.config for several build configurations

... file: be it a console, desktop, web, mobile app or something else. If you start providing configuration for a dll, you may end up with something I can call a config hell. You may no longer understand (easily) why this and that variables have such weird values coming seemingly from nowhere. "Hold o...
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When do you use map vs flatMap in RxJava?

... useful one idea is to "flatten" this observable of observables (you might start to see where the name _flat_Map comes from). RxJava provides a few ways to flatten observables and for sake of simplicity lets assume merge is what we want. Merge basically takes a bunch of observables and emits wheneve...
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Why we should not use protected static in java

... be static, then I make it static. - This will get you in trouble when you start using mock frameworks for unit testing. But this leads us to a different topic ... – barfuin Jun 18 '14 at 16:20 ...