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Why should the copy constructor accept its parameter by reference in C++?
... reference, it's by value. To do that you make a copy, and to do that you call the copy constructor. But to do that, we need to make a new value, so we call the copy constructor, and so on...
(You would have infinite recursion because "to make a copy, you need to make a copy".)
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How should you build your database from source control?
... production environments in deployment scripts?
Use templates, so that actually you would produce different set of scripts for each environment (ex. references to external systems, linked databases, etc)
How do you test that the deployment scripts will work as effectively against production as they ...
Unresolved external symbol on static class members
...als here:
For me, the thing that I forgot was to mark my class definition __declspec(dllexport), and when called from another class (outside that class's dll's boundaries), I of course got the my unresolved external error.
Still, easy to forget when you're changing an internal helper class to a one...
How to secure MongoDB with username and password
...d({})
Long answer: Read this if you want to properly understand.
It's really simple. I'll dumb the following down https://docs.mongodb.com/manual/tutorial/enable-authentication/
If you want to learn more about what the roles actually do read more here: https://docs.mongodb.com/manual/reference/b...
When should you branch?
... Jan 20 '10 at 11:09
Daniel VassalloDaniel Vassallo
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Should I Dispose() DataSet and DataTable?
... both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
10 Answers
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Why would iterating over a List be faster than indexing through it?
...nt head -> item1 -> print item1 -> item2 -> print item2 etc.
all in a single traversal, which is O(N).
Now, going to the other implementation of List which is ArrayList, that one is backed by a simple array. In that case both of the above traversals are equivalent, since an array is c...
How to sum up elements of a C++ vector?
What are the good ways of finding the sum of all the elements in a std::vector ?
11 Answers
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“find: paths must precede expression:” How do I specify a recursive search that also finds files in
...me reason single quotes didn't work for me. I had to use double quotes. ¯\_(ツ)_/¯
– Planky
Mar 24 '17 at 21:41
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Android Studio: Plugin with id 'android-library' not found
... @binil This is a version of Android Gradle plugin not the Gradle itself. All versions are listed on Maven Repository mvnrepository.com/artifact/com.android.tools.build/gradle To list build dependencies run gradle buildEnvironment
– Grzegorz Żur
Dec 8 '16 at ...