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What is Objective C++? [closed]
... that mixes Objective-C classes and C++ classes (two entirely unrelated entities). Your C++ code will work, just as before, and the resulting executable will be linked with the Objective-C runtime, so your Objective-C classes will work as well. You can definitely use it in Xcode -- name your files w...
Rails 3 - can't install pg gem
...path to the pg_config. Try to install the gem using:
gem install pg -- --with-pg-config= 'PATH_TO_YOUR_PG_CONFIG'
If you are not sure where your pg_config is, and assuming you are on Linux or Mac, you can run the following command:
which pg_config
Your pg-config can be in different locations d...
What is std::promise?
I'm fairly familiar with C++11's std::thread , std::async and std::future components (e.g. see this answer ), which are straight-forward.
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Understanding Spliterator, Collector and Stream in Java 8
...g trouble understanding the Stream interface in Java 8, especially where it has to do with the Spliterator and Collector interfaces. My problem is that I simply can't understand Spliterator and the Collector interfaces yet, and as a result, the Stream interface is still somewhat obscure ...
Multiple Inheritance in PHP
...an way to go around the fact that PHP5 still doesn't support multiple inheritance. Here's the class hierarchy:
11 Answers
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Best way to store date/time in mongodb
...follow
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edited Feb 10 '14 at 10:52
Dan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
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How to override trait function and call it from the overridden function?
...
Your last one was almost there:
trait A {
function calc($v) {
return $v+1;
}
}
class MyClass {
use A {
calc as protected traitcalc;
}
function calc($v) {
$v++;
return $this->traitcalc($v);
}
}
The ...
How to return an empty ActiveRecord relation?
If I have a scope with a lambda and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array:
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Can Protractor and Karma be used together?
...cenario Runner for E2E testing, does that mean I will still be able to use it with Karma as my E2E testing framework ?
4 ...
How to get all count of mongoose model?
... model that data has been saved? there is a method of Model.count() , but it doesn't seem to work.
8 Answers
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