Intel Fortran Language Reference - NCI National Facility

B Intel Fortran Language Reference
If more than one object=value or more than one value is specified, they must be separated by value
separators.
A value separator is any number of blanks, or a comma or slash, preceded or followed by any
number of blanks.
See Also
• “Rules for Namelist Sequential READ Statements” for details on namelist input
• “Rules for Namelist Sequential WRITE Statements” for details on namelist output
Integer POINTER Statement
The POINTER statement discussed here is different from the one discussed in “POINTER
Attribute and Statement”. It establishes pairs of variables and pointers, in which each pointer
contains the address of its paired variable.
This POINTER statement takes the following form:
POINTER (pointer, pointee) [, (pointer, pointee)] . . .
pointer
Is a variable whose value is used as the address of the pointee.
pointee
Is a variable; it can be an array name or array specification.
Rules and Behavior
The following are pointer rules and behavior:
• Two pointers can have the same value, so pointer aliasing is allowed.
• When used directly, a pointer is treated like an integer variable. On Intel® Itanium®
processors, a pointer occupies two numeric storage units, so it is a 64-bit quantity
(INTEGER(8)). On IA-32 processors, a pointer occupies one numeric storage unit, so it is a
32-bit quantity (INTEGER(4)).
• A pointer cannot be a pointee.
• A pointer cannot appear in an ASSIGN statement and cannot have the following attributes:
ALLOCATABLE INTRINSIC POINTER
EXTERNAL PARAMETER TARGET
A pointer can appear in a DATA statement with integer literals only.
• Integers can be converted to pointers, so you can point to absolute memory locations.
• A pointer variable cannot be declared to have any other data type.
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