FIO_ERASE
Delete a file
FIO_GUNIT
Get a unit number
FIO_PUNIT
Release a unit number
FIO_REP
Report error from FORTRAN I/O statements
FIO_SERR
Set error status
FIO_TEST
Test if an FIO status value belongs to a certain class of errors
RIO_ERASE
Delete a file
FIO/RIO FORTRAN file I/O routines