Just out of curiosity: Is there a way to use C++ files in C projects? With files I mean the ability to access functions from header files and libraries and use them in your own projects for problems that have already been solved.
In the Solution Explorer, right-click the Source Files folder and select Add > New Item. In the Add New Item window, select C++ File (. cpp).
The extension of the file does not matter to most C compilers, so it will work.
Why files are needed? When a program is terminated, the entire data is lost. Storing in a file will preserve your data even if the program terminates. If you have to enter a large number of data, it will take a lot of time to enter them all.
A file with the . C file extension is a plain text C/C++ source code file. It can both hold an entire program's source code in the C or C++ programming language, and be referenced by other files from within a C project.
Yes, it is possible to mix C and C++ if you're careful. The specifics will depend on what compiler, etc. you're using.
There's a whole chapter about it at the C++ FAQ: http://www.parashift.com/c++-faq-lite/mixing-c-and-cpp.html.
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