You could open the file in ios::binary
mode. This doesn't, strictly speaking, mean that it's a binary file [any more than any other file is "text", since all files are binary]. Binary in this context just means "don't muck about with the stuff inside the file by interpreting characters as special, add or remove any characters, etc.
Or when you copy the file to Linux, use dos2unix myfile.txt
to convert it from "dos" (and Windows) format to "unix" style text file.