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Efficiency of Java “Double Brace Initialization”?
...en utilizing double-brace initialization, so it's probably not such a good idea to go too overboard with it. But as Eddie has noted in the comments, it's not possible to be absolutely sure of the impact.
Just for reference, double brace initialization is the following:
List<String> list = ...
What is the canonical way to check for errors using the CUDA runtime API?
...ome other kind of error during some_function" << std::endl;
// no idea what to do, so just rethrow the exception
throw;
}
Because thrust::system_error is a std::runtime_error, we can alternatively handle it in the same manner of a broad class of errors if we don't require the precision ...
What is Mocking?
...e post by Martin Fowler Mocks Aren't Stubs where he discusses a lot of the ideas of mocking.
In one paragraph - Mocking is one particlar technique to allow testing of a unit of code with out being reliant upon dependencies. In general, what differentiates mocking from other methods is that mock obj...
How to avoid using Select in Excel VBA
...e are various combinations of these methods, but that would be the general idea expressed as shortly as possible for impatient people like me.
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Algorithm to generate a crossword
...ch it increases the size of the grid and how many intersections there are (ideally you'd want each word to be crossed by 2-3 other words). Keep track of all the positions and their scores and then choose the best one.
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C++ unordered_map using a custom class type as the key
... the hashing method at the end of jogojapan's answer, but you can find the idea for a more general solution here (if you don't want to use Boost).
My code is maybe a bit too minified. For a slightly more readable version, please see this code on Ideone.
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How do you sign a Certificate Signing Request with your Certification Authority?
...ssword or passphrase so you can examine the certificate. It's a really bad idea to omit the password or passphrase.
$ openssl req -x509 -config openssl-ca.cnf -newkey rsa:4096 -sha256 -nodes -out cacert.pem -outform PEM
After the command executes, cacert.pem will be your certificate for CA operat...
When do we have to use copy constructors?
...ou should point out the better solution is to use std::string. The general idea is that only utility classes that manage resources need to overload the Big Three, and that all other classes should just use those utility classes, removing the need to define any of the Big Three.
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Writing your own STL Container
...e that the below is technically more strict than required, but this is the idea. Note that the vast majority of the "standard" functions are technically optional, due to the awesomeness that is iterators.
template <class T, class A = std::allocator<T> >
class X {
public:
typedef A a...
JSP tricks to make templating easier?
...
Based on the same basic idea as in @Will Hartung's answer, here is my magic one-tag extensible template engine. It even includes documentation and an example :-)
WEB-INF/tags/block.tag:
<%--
The block tag implements a basic but useful exten...