Storing C++ template function definitions in a .CPP file
Separation of implementation details (aka definitions in foo.cpp) from which versions are actually compiled (in foo-impl.cpp) and declarations (in foo.h). I dislike that most C++ templates are …
c++ - What does the explicit keyword mean? - Stack Overflow
33 Cpp Reference is always helpful!!! Details about explicit specifier can be found here. You may need to look at implicit conversions and copy-initialization too. Quick look The explicit specifier …
c++ - How can I trim a std::string? - Stack Overflow
} // The remaining functions (trim() et al.) are identical to the new C++11 version std::ptr_fun is needed to disambiguate std::isspace because there is a second definition which supports …
Using a namespace define in another `.cpp` file - Stack Overflow
May 27, 2020 · Declare the namespace and all variables and functions in a header file. Implement in a cpp file. Include the header in main. Compile ALL your cpp files. Your namespace …
How can I get current time and date in C++? - Stack Overflow
The ffead-cpp provides multiple utility classes for various tasks. One such class is the Date class which provides a lot of features right from Date operations to date arithmetic.
c++ - Easily measure elapsed time - Stack Overflow
May 11, 2010 · I am trying to use time() to measure various points of my program. What I don't understand is why the values in the before and after are the same? I understand this is not the …
How can I convert int to string in C++? - Stack Overflow
itoa will be faster than the stream equivalent. There are also ways of re-using the string buffer with the itoa method (avoiding heap allocations if you are frequently generating strings. e.g. for …
What is the purpose of using #ifdef and #if in C++?
The meaning of #ifdef is that the code inside the block will be included in the compilation only if the mentioned preprocessor macro is defined. Similarly, #if means that the block will be …
Run C++ in command prompt - Windows - Stack Overflow
Syntax is just gcc my_source_code.cpp, or gcc -o my_executable.exe my_source_code.cpp. It gets more complicated, of course, when you have multiple source files (as in implementation; …
How to pass optional arguments to a method in C++?
Sep 24, 2010 · 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 …