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Run-Time-Error Procedures
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─────Run-Time-Error Procedures──────────────────────────────────────────────
 
     The IGETER function and the ICLRER subroutine
     are included for compatibility with previous versions of FORTRAN.
     Their functionality is provided in the current version by the IOSTAT=
     option.
 
     IGETER is called after an I/O operation that includes the ERR= or
     IOSTAT= options. Possible return values are:
 
     Return Value       Description
 
     0                  No error occurred.
 
     Negative value     An end-of-file condition occurred, but no other
                        error occurred.
 
     Positive value     An error occurred. The return value is the error
                        number.
                                    -♦-