c++ - Difference between | and || , or & and && - Stack Overflow
Dec 28, 2015 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation …
What is the meaning of prepended double colon - Stack Overflow
I found this line of a code in a class which I have to modify: ::Configuration * tmpCo = m_configurationDB;//pointer to current db and I don't know what exactly means the double …
C++ code file extension? What is the difference between .cc and …
95 .cpp is the recommended extension for C++ as far as I know. Some people even recommend using .hpp for C++ headers, just to differentiate from C. Although the compiler doesn't care …
Storing C++ template function definitions in a .CPP file
The problem you describe can be solved by defining the template in the header, or via the approach you describe above. I recommend reading the following points from the C++ FAQ …
c++ - What does the explicit keyword mean? - Stack Overflow
I just want to point out to anyone new coming along that ever since C++11, explicit can be applied to more than just constructors. It's now valid when applied to conversion operators as well. …
What is the meaning of the auto keyword? - Stack Overflow
Sep 12, 2023 · For variables, specifies that the type of the variable that is being declared will be automatically deduced from its initializer. For functions, specifies that the return type is a …
*.h or *.hpp for your C++ headers / class definitions
For other headers in .h, either there is a corresponding .cpp file as implementation, or it is a non-C++ header. The latter is trivial to differentiate through the contents of the header by humans …
How to iterate through a list of objects in C++? - Stack Overflow
Mar 8, 2014 · Learn how to iterate through a list of objects in C++ using various methods and techniques.
How to find if a given key exists in a std::map - Stack Overflow
To those who are looking for speed: count and find are nearly identical in speed when using maps that require unique keys. (1) If you don't need the elements to maintain a specific order, use …
Proper way to initialize C++ structs - Stack Overflow
Jan 21, 2017 · Our code involves a POD (Plain Old Datastructure) struct (it is a basic c++ struct that has other structs and POD variables in it that needs to get initialized in the beginning.) …