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How to navigate through a vector using iterators? (C++)
The goal is to access the "nth" element of a vector of strings instead of the [] operator or the "at" method. From what I understand, iterators can be used to navigate through containers, but I've never used iterators before, and what I'm reading is confusing.
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How is Docker different from a virtual machine?
...d a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
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A worthy developer-friendly alternative to PayPal [closed]
I understand payments are a tricky thing, but I'm yet to find a worthy alternative to PayPal. I want to change from PayPal because I think they are expensive and it doesn't work in all countries. Furthermore, I think that the API is sufficient, but could be better. The API documentation, however, is...
JavaScript style for optional callbacks
...k and run it. Is checking if the callback is defined/function a good style or is there a better way?
10 Answers
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When to use ref and when it is not necessary in C#
I have a object that is my in memory state of the program and also have some other worker functions that I pass the object to to modify the state. I have been passing it by ref to the worker functions. However I came across the following function.
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Read an Excel file directly from a R script
How can I read an Excel file directly into R? Or should I first export the data to a text- or CSV file and import that file into R?
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C++ template constructor
I wish to have a non-template class with a template constructor with no arguments.
8 Answers
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What's the best way to do “application settings” in Android? [closed]
I'd like to store some application settings (like the URL of an API, and some settings for testing) for an Android application.
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How to generate and validate a software license key?
...y involved in developing a product (developed in C#) that'll be available for downloading and installing for free but in a very limited version. To get access to all the features the user has to pay a license fee and receive a key. That key will then be entered into the application to "unlock" the f...
C++ - passing references to std::shared_ptr or boost::shared_ptr
If I have a function that needs to work with a shared_ptr , wouldn't it be more efficient to pass it a reference to it (so to avoid copying the shared_ptr object)?
What are the possible bad side effects?
I envision two possible cases:
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