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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...ime poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C++ containers is pretty basic). For reference, the boost documentation on composite keys can be found here: boost...
How to iterate over a JSONObject?
...der doesn't matter in maps of properties: keys in JSONObject are unordered and your assertion was a simple reflection of a private implementation ;)
– caligari
Oct 1 '13 at 13:55
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What is a thread exit code?
...for this value could interpret it to mean that the thread is still running and continue to test for the completion of the thread after the thread has terminated, which could put the application into an infinite loop.
My understanding of all this is that the exit code doesn't matter all that much...
Element-wise addition of 2 lists?
... There are many times where python syntax is really elegant and simple, but unfortunately this isn't one of them. And for such a simple task, it's a pity.... Why would they make "+" concatenate the lists when there's already the .extend() method?
– Nic Scozzaro
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specify project file of a solution using msbuild
I want the commandline for building a particular project of a solution using msbuild like we do with devenv.com.In devenv.com we can specify a project of a solution using following commandline
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Calling startActivity() from outside of an Activity?
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if your android version is below Android - 6 then you need to add this line otherwise it will work above Android - 6.
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Intent i = new Intent(this, Wakeup.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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How does bash tab completion work?
I have been spending a lot of time in the shell lately and I'm wondering how the tab autocomplete works. What's the mechanism behind it? How does the bash know the contents of every directory?
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Use Font Awesome Icon in Placeholder
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You can't add an icon and text because you can't apply a different font to part of a placeholder, however, if you are satisfied with just an icon then it can work. The FontAwesome icons are just characters with a custom font (you can look at the F...
What's the opposite of chr() in Ruby?
In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
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Any way to force strict mode in node?
...veral mailing lists where this was discussed, these are rather old however and I have no idea if this is implemented or not.
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