Note that some programs use a lowercase c file extension to denote a C source code file, and an uppercase C for C++, but that's not required.
Rịba ama na ụfọdụ mmemme na-eji obere nchịkọta faịlụ c igosi faịlụ C koodu, na nnukwu C maka C +, ma nke ahụ anaghị achọrọ.