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Why are C++ inline functions in the header?
... one definition rules it makes most sense for you to follow; adding inline and then being restricted by the subsequent constraints makes little sense.
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xpath find if node exists
...probably ask that as a new question at SO, but as a quick guide: html/body and not(html/body/node()) (i.e., just test if it exists and it does not contain any child nodes, or text nodes).
– Abel
Sep 6 '15 at 11:30
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Android应用开发性能优化完全分析1 背景其实有点不想写这篇文章的，但是又想写，有些矛盾。不想写的原因是随便上网一搜一堆关于性能的建议，感觉大家你一总结、我一总结的...1 背景
其实有点不想写这篇文章的，但是又想...
I need to store postal codes in a database. How big should the column be?
...n it?
If the initial version of your application is going to support US and Canadian addresses (which I'm inferring from the fact that you call out those sizes in your question), I'd declare the field as VARCHAR2(9) (or VARCHAR2(10) if you intend to store the hyphen in ZIP+4 fields). Even lookin...
Array versus List: When to use which?
What are the scenarios when one is preferable over the other? And why?
16 Answers
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Serialize an object to string
...ted. Also, this specific answer has been discussed on meta, so the edit stands. If you disagree, then please reply to that post on meta on why you think your answer is a special case and shouldn't be collaboratively edited.
– casperOne
Jun 14 '12 at 14:06
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How accurately should I store latitude and longitude?
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Actually, equator is best case. One latitude and one longitude degree are the same size at the equator (69 miles), but one degree of longitude shrinks to zero as it approaches either of the poles. Here's a very nice explanation: nationalatlas.gov/articles/mapping/a_latl...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
...possible to have the current timestamp be the default value for one column and the auto-update value for another column.
Changes in MySQL 5.6.5:
Previously, at most one TIMESTAMP column per table could be automatically initialized or updated to the current date and time. This restriction has b...
When should I use semicolons in SQL Server?
While checking some code on the web and scripts generated by SQL Server Management Studio I have noticed that some statements are ended with a semicolon.
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Pagination on a list using ng-repeat
...s to my list. I followed the AngularJS tutorial, the one about smartphones and I'm trying to display only certain number of objects. Here is my html file:
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