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How dangerous is it to compare floating point values?

... First of all, floating point values are not "random" in their behavior. Exact comparison can and does make sense in plenty of real-world usages. But if you're going to use floating point you need to be aware of how it works. Erring on the side of assuming floating point ...
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Legality of COW std::string implementation in C++11

It had been my understanding that copy-on-write is not a viable way to implement a conforming std::string in C++11, but when it came up in discussion recently I found myself unable to directly support that statement. ...
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How many threads can a Java VM support?

... OS, on what other processes are doing, on what Java release you're using, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, of course. Once the machine hit around 6500 Threads (in Java), the whole m...
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Making a div vertically scrollable using CSS

...bar can be triggered with any property overflow, overflow-x, or overflow-y and each can be set to any of visible, hidden, scroll, auto, or inherit. You are currently looking at these two: auto - This value will look at the width and height of the box. If they are defined, it won't let the box expa...
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What is the difference between functional and non functional requirement? [closed]

What is the difference between functional and non-functional requirements in the context of designing a software system? ...
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How to make a programme continue to run after log out from ssh? [duplicate]

...t over ssh. I want it to continue to run after I logout,is this possible and how would I achieve this? 6 Answers ...
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Xcode 6 Bug: Unknown class in Interface Builder file

I upgraded to Xcode 6 beta 4 and now my App continuously crashes with the message 52 Answers ...
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cscope or ctags why choose one over the other? [closed]

I primarily use vim / gvim as an editor and am looking at using a combination of lxr (the Linux Cross Reference) and either cscope or ctags for exploring the kernel source. However, I haven't ever used either cscope or ctags and would like to hear why one might choose one over the other t...
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Don't reload application when orientation changes

...mply need nothing to change when the screen is rotated. My app displays a random image when it first loads and rotating the device should not select another random image. How can I (simply) make this behavior stop? ...
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When should I mock?

I have a basic understanding of mock and fake objects, but I'm not sure I have a feeling about when/where to use mocking - especially as it would apply to this scenario here . ...