Input and output

dispmsg	Display an error message.
fclose	Close the current input, output or error stream.
fcopy	Copy a file.
feof	Check if the current input stream is at the end of the file.
fflush	Flush the current output stream.
fgetid	Get the stream number of the current input, output or stream.
fgetinfo	Retrieve information about current input, output or error stream.
fgets, fgetsl	Read a text string from the current input stream.
fmove	Move (rename) a file.
fopen	Open a file and select it as the current input/output/error stream.
fread	Read a block of data from the current input stream.
fremove	Remove (delete) a file.
fselect	Select a stream to be the current input, output or error stream.
fsize	Get the size of a file.
fskip	Skip a block of data from the current input stream.
fwrite	Write a block of data to the current output stream.
printf	Send a message to the current output stream.
setioerrmsg	Set an error message for an IO driver operation.