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Polymorphism in C++
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To understand polymorphism - as the term is used in Computing Science - it helps to start from a simple test for and definition of it. Consider:
Type1 x;
Type2 y;
f(x);
f(y);
Here, f() is to perform some operation and is being given values x and y as inputs.
To exhibit po...
Quickly reading very large tables as dataframes
...s a dataframes in R. read.table() has a lot of convenient features, but it seems like there is a lot of logic in the implementation that would slow things down. In my case, I am assuming I know the types of the columns ahead of time, the table does not contain any column headers or row names, an...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
I am getting this message when I run my web application. It runs fine but I get this message during shutdown.
14 Answers
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What is unit testing and how do you do it? [duplicate]
What is unit testing?
What Makes a Good Unit Test?
New to Unit Testing
Unit Testing - definitions
Learning Unit Testing
How to properly mock and unit test
Unit Testing: Beginner Questions
And many more ...
Also, Google for site:stackoverflow.com "how do you" unit-test...
Managing large binary files with Git
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If the program won't work without the files it seems like splitting them into a separate repo is a bad idea. We have large test suites that we break into a separate repo but those are truly "auxiliary" files.
However, you may be able to manage the fi...
Understanding ibeacon distancing
Trying to grasp a basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?
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How can I run just the statement my cursor is on in SQL Server Management Studio?
As a long time Toad for Oracle user, I have gotten used to hitting Ctrl+Enter and having just the statement under the cursor be executed.
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Comparison of CI Servers? [closed]
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No question like this is complete without a link to the big CI Feature Matrix(Web Archive) which lists just about every CI option out there.
But I think it is important to look ahead to the scope of what you want to include in your CI system. Is it going to b...
How do I directly modify a Google Chrome Extension File? (.CRX)
I'm not sure in which languages those extensions are, I think the are written in Html, Javascript or JSON. As far as I know they are "compressed" in a .CRX file.
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Difference between 'struct' and 'typedef struct' in C++?
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In C++, there is only a subtle difference. It's a holdover from C, in which it makes a difference.
The C language standard (C89 §3.1.2.3, C99 §6.2.3, and C11 §6.2.3) mandates separate namespaces for different categories of identifiers, including tag identifiers (f...