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Programmatically find the number of cores on a machine

...;sysinfo); int numCPU = sysinfo.dwNumberOfProcessors; Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards) int numCPU = sysconf(_SC_NPROCESSORS_ONLN); FreeBSD, MacOS X, NetBSD, OpenBSD, etc. int mib[4]; int numCPU; std::size_t len = sizeof(numCPU); /* set the mib for hw.ncpu */ mib[...
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How to make a JTable non-editable

...el. What exists is the method isCellEditable(int,int) which takes rowIndex and coulmnIndex as parameters. The user can selectively enable/disable editing for a particular row/column by overriding "isCellEditable" method or can use the default implementation to disable editing for all cells. ...
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If I fork someone else's private Github repo into my account, is it going to appear in my account as

... No. You can fork it and it still remains private. Private collaborators may fork any private repository you’ve added them to without their own paid plan. Their forks do not count against your private repository quota. https://github....
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What is the logic behind the “using” keyword in C++?

...aration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. It has the same semantics as if it were introduced by the typedef specifier. In particular, it does not define a new type and ...
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How to detect the swipe left or Right in Android?

I have an EditText view in android. On this I want to detect swipe left or right. I am able to get it on an empty space using the code below. But this does not work when I swipe on an EditText . How do I do that? Please let me know If I am doing something wrong. Thank you. ...
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Why is 1/1/1970 the “epoch time”?

...DC, but it was probably cheap to use whatever was most common at the time, and TVs were being mass-produced then... – Matt Howells Jul 7 '09 at 10:32 18 ...
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Auto reloading a Sails.js app on code changes?

...y code change in a sails.js app you have to manually stop the sails server and run sails lift again before you can see the changes. ...
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Sending email with PHP from an SMTP server

...l through a server that requires SMTP Auth, you really need to specify it, and set the host, username and password (and maybe the port if it is not the default one - 25). For example, I usually use PHPMailer with similar settings to this ones: $mail = new PHPMailer(); // Settings $mail->IsSMTP...
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Clearing a string buffer/builder after loop

... Ah, I think sb.setLength(0); is cleaner and more efficient than declaring it inside the loop. Your solution goes against the performance benefit of using StringBuffer... – Jon Feb 11 '10 at 5:38 ...
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How do I enable EF migrations for multiple contexts to separate databases?

...ecause the Configuration.cs file already exists. If you rename that class and file, you should be able to run that 2nd Enable-Migrations, which will create another Configuration.cs. You will then need to specify which configuration you want to use when updating the databases. Update-Database -Con...