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. …
Why are #ifndef and #define used in C++ header files?
I have been seeing code like this usually in the start of header files: #ifndef HEADERFILE_H #define HEADERFILE_H And at the end of the file is #endif What is the purpose of this?
How can I change the version of the C++ language standard used …
Oct 25, 2023 · I printed the value of the __cplusplus macro and found out that my files are executed with C++98 in Visual Studio Code. I'm using the CodeRunner extension. How do I …
How do I show the value of a #define at compile-time?
I know that this is a long time after the original query, but this may still be useful. This can be done in GCC using the stringify operator "#", but it requires two additional stages to be defined first. …
*.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 …
c++ - Inheriting constructors - Stack Overflow
If your compiler supports C++11 standard, there is a constructor inheritance using using (pun intended). For more see Wikipedia C++11 article. You write: class A { public: explicit A(int x) {} …