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C++11 emplace_back on vector?

...ill be changed in C++20. In other words, even though implementation internally will still call T(arg0, arg1, ...) it will be considered as regular T{arg0, arg1, ...} that you would expect. share | ...
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SQL DROP TABLE foreign key constraint

If I want to delete all the tables in my database like this, will it take care of the foreign key constraint? If not, how do I take care of that first? ...
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程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...酷的。” 6、Keyboard not found ... press F1 to continue 7、Unix是用户友好的,只是要成为Unix的用户很困难。 8、一百万只猴子,给他们一百万个键盘,其中的一个会写出Java程序,其它的写的都是Perl程序。 9、程序员给孩子取名...
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How to remove a directory from git repository?

...Remove duplicated directory" git push origin <your-git-branch> (typically 'master', but not always) Remove directory from git but NOT local As mentioned in the comments, what you usually want to do is remove this directory from git but not delete it entirely from the filesystem (local) In ...
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Generating a SHA-256 hash from the Linux command line

... NOTE: on OS X (BSD), it's echo -n foobar | shasum -a 256 – Olie Oct 16 '14 at 15:26 6 ...
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Fragment onCreateView and onActivityCreated called twice

...ment in the constructor seems to make the double onCreateView problem magically go away (I assume it just ends up being null for onTabSelected when called through the ActionBar.setSelectedNavigationItem() path when saving/restoring state). ...
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How to show popup message like in Stack Overflow

...he example. Here's how Stackoverflow does it: This is the markup, initially hidden so we can fade it in: <div id='message' style="display: none;"> <span>Hey, This is my Message.</span> <a href="#" class="close-notify">X</a> </div> Here are the style...
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How to generate the JPA entity Metamodel?

...etamodel Generator jar in the classpath and compiler level>=1.6 that is all you need build the project and metamodel will be generated automatically. In case of IDE Eclipse 1. goto Project->Properties->Java Compiler->Annotation Processing and enable it. 2. Expand Annotation Processing...
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How can I measure the actual memory usage of an application or process?

... With ps or similar tools you will only get the amount of memory pages allocated by that process. This number is correct, but: does not reflect the actual amount of memory used by the application, only the amount of memory reserved for it can be misleading if pages are shared, for example by s...
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When maven says “resolution will not be reattempted until the update interval of MyRepo has elapsed”

With maven, I occasionally hit an artifact that comes from some 3rd-party repo that I haven't built or included in my repository yet. ...