9.1 Argument Keywords in Intrinsic Procedures

For all intrinsic procedures, the arguments shown are the names you must use as keywords when using the keyword form for actual arguments. For example, a reference to function CMPLX (X, Y, KIND) can be written as follows:

Using positional arguments: CMPLX (F, G, L)

Using argument keywords: CMPLX (KIND=L, Y=G, X=F)[1]

[1] Note that argument keywords can be written in any order.

Some argument keywords are optional (denoted by square brackets). The following describes some of the most commonly used optional arguments:

BACK Specifies that a string scan is to be in reverse order (right to left).

DIM Specifies a selected dimension of an array argument.

KIND Specifies the kind type parameter of the function result.

MASK Specifies that a mask can be applied to the elements of the argument array to exclude the elements that are not to be involved in an operation.

For More Information:

On argument keywords in subroutine references, see Section 7.2.
On argument keywords in function references, see Section 8.4.2.2.

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Using positional arguments:	CMPLX (F, G, L)
Using argument keywords:	CMPLX (KIND=L, Y=G, X=F)[1]
[1] Note that argument keywords can be written in any order.

BACK	Specifies that a string scan is to be in reverse order (right to left).
DIM	Specifies a selected dimension of an array argument.
KIND	Specifies the kind type parameter of the function result.
MASK	Specifies that a mask can be applied to the elements of the argument array to exclude the elements that are not to be involved in an operation.