getc, fgetc - get a character from a logical unit
integer function getc (char)
integer function fgetc (lunit, char)
These routines return the next character from a file associated with a
fortran logical unit, bypassing normal fortran I/O. Getc reads from
logical unit 5, normally connected to the control terminal input.
The value of each function is a system status code. Zero indicates no
error occured on the read; -1 indicates end of file was detected. A
positive value will be either a UNIX system error code or an f77 I/O
error code. See perror(3F).
getc(3S), intro(2), perror(3F)
4th Berkeley Distribution 13 June 1983 GETC(3F)