f66

Tells the compiler to apply FORTRAN 66 semantics.

IDE Equivalent

Windows: Language > Enable FORTRAN 66 Semantics

Linux: None

OS X: Language > Enable FORTRAN 66 Semantics

All

Linux and OS X:

-f66

Windows:

/f66

None

OFF	The compiler applies Fortran 95 semantics.

This option tells the compiler to apply FORTRAN 66 semantics when interpreting language features. This causes the following to occur:

DO loops are always executed at least once
FORTRAN 66 EXTERNAL statement syntax and semantics are allowed
If the OPEN statement STATUS specifier is omitted, the default changes to STATUS='NEW' instead of STATUS='UNKNOWN'
If the OPEN statement BLANK specifier is omitted, the default changes to BLANK='ZERO' instead of BLANK='NULL'

Linux and OS X: -66

Windows: None