Intel Fortran Language Reference - NCI National Facility

Deleted and Obsolescent Language Features A
• Statement functions
To replace this functionality, it is recommended that you use an internal function (see
“Internal Procedures”).
Obsolescent Language Features in Fortran 90
Fortran 90 did not delete any of the features in FORTRAN 77, but some FORTRAN 77 features
were identified as obsolescent.
Other methods are suggested to achieve the functionality of the following obsolescent features:
• Alternate return (labels in an argument list)
To replace this functionality, it is recommended that you use an integer variable to return a
value to the calling program, and let the calling program test the value and perform
operations, using a computed GO TO statement (see “Computed GO TO Statement”) or
CASE construct (see “CASE Constructs”).
• Arithmetic IF
To replace this functionality, it is recommended that you use an IF statement or construct (see
“IF Construct and Statement”).
• ASSIGN and assigned GO TO statements
These statements are usually used to simulate internal procedures (see “Internal Procedures”),
which can now be coded directly.
• Assigned FORMAT specifier (label of a FORMAT statement assigned to an integer variable)
To replace this functionality, it is recommended that you use character expressions to define
format specifications (see “Format Specifications”).
• Branching to an END IF statement from outside its IF block
To replace this functionality, it is recommended that you branch to the statement following the
END IF statement (see “IF Construct”).
• H edit descriptor
To replace this functionality, it is recommended that you use the character constant edit
descriptor (see “Character String Edit Descriptors”).
• PAUSE statement
To replace this functionality, it is recommended that you use a READ statement that awaits
input data (see “READ Statements”).
• Real and double precision DO control variables and DO loop control expressions
To replace this functionality, it is recommended that you use integer DO variables and
expressions (see “DO Constructs”).
A-3