C++ code questions

standard C++ doesn't have such a function but you can write it rather easily. Use the <cctype> (or <ctype.h> in C) library to classify bytes into characters (use isalpah() for this), digits (isdigit() ), isspace() for blanks etc. Then sum up all the results. This should be the total number of bytes in the file. Of course, you will need to use the <fstream> or <stdio.h> libraries to open the file and read from it.