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How to convert a private key to an RSA private key?
...y question first. I bought a certificate from a CA and used the following format to generate the csr and the private key:
3...
R - Markdown avoiding package loading messages
...ve been using Knitr via R-Studio, and think it is pretty neat. I have a minor issue though. When I source a file in an R-Chunk, the knitr output includes external comments as follows:
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Move all files except one
How can I move all files except one? I am looking for something like:
14 Answers
14
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I get exception when using Thread.sleep(x) or wait()
I have tried to delay - or put to sleep - my Java program, but an error occurs.
13 Answers
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Best practice for partial updates in a RESTful service
I am writing a RESTful service for a customer management system and I am trying to find the best practice for updating records partially. For example, I want the caller to be able to read the full record with a GET request. But for updating it only certain operations on the record are allowed, like ...
Sorting a vector in descending order
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Actually, the first one is a bad idea. Use either the second one, or this:
struct greater
{
template<class T>
bool operator()(T const &a, T const &b) const { return a > b; }
};
std::sort(numbers.begin(), numbers.end(), greater());
That way your code won't silent...
How expensive is RTTI?
...ys that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
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Devise form within a different controller
I am using a devise gem for sign_in/sign_out procedures.
5 Answers
5
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how to make svn diff show only non-whitespace line changes between two revisions
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You can use
svn diff -r 100:200 -x -b > file.diff
If you want to ignore all whitespaces:
svn diff -x -w | less
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Coalesce function for PHP?
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There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
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