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How to forward declare a C++ template class?

... I disagree. The standard says: "A template-parameter shall not be given default arguments by two different declarations in the same scope". And I found nothing about defaults in the first declaration only. Also the code with the forward declaration and defaults in the definition ...
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Use URI builder in Android or create URL with variables

...what I am doing with each segment. I also added toString() to the build() call to get the proper type back. – David Oct 3 '13 at 20:19 ...
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CORS - What is the motivation behind introducing preflight requests?

Cross-origin resource sharing is a mechanism that allows a web page to make XMLHttpRequests to another domain (from wikipedia ). ...
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What is the difference between std::array and std::vector? When do you use one over other? [duplicat

...ssic C array. That means its size is fixed at compile time and it will be allocated as a single chunk (e.g. taking space on the stack). The advantage it has is slightly better performance because there is no indirection between the object and the arrayed data. std::vector is a small class contain...
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What is the purpose of “&&” in a shell command?

... You may notice I've used the word "intent" - that's for good reason. Not all programs have the same behavior, so for this to work, you need to understand what the program considers a "failure" and how it handles it by reading the documentation and, if necessary, the source code. Your shell consid...
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Providing a default value for an Optional in Swift?

...he idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil: ...
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Using Python 3 in virtualenv

... virtualenv, as described here. The problem was fixed by running: pip install --upgrade virtualenv share | improve this answer | follow | ...
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Start service in Android

I want to call a service when a certain activity starts. So, here's the Service class: 5 Answers ...
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How can query string parameters be forwarded through a proxy_pass with nginx?

... Humm.. I can't recall now :( But I feel like it might have been related to the "~*". However, I just checked, and I have nginx 1.2.3 (through homebrew). Maybe that's it? – duma Aug 31 '12 at 4:07 ...
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Adding multiple class using ng-class

...ass="{'class1 class2' : expression1}" just test that and did not worked at all, solution as @CodeHater said "To apply multiple classes when an expression holds true:" that made the trick – d1jhoni1b Jul 14 '14 at 22:51 ...