Intel Fortran Language Reference - NCI National Facility

Glossary
interface block
The sequence of statements starting with an INTERFACE statement and ending with the
corresponding END INTERFACE statement.
interface body
The sequence of statements in an interface block starting with a FUNCTION or SUBROUTINE
statement and ending with the corresponding END statement. Also called a procedure interface
body.
internal file
The designated internal storage space (or variable buffer) that is manipulated during input and
output. An internal file can be a character variable, character array, character array element, or
character substring. In general, an internal file contains one record. However, an internal file that
is a character array has one record for each array element.
internal procedure
A procedure (other than a statement function) contained in a main program or another
subprogram. The program unit containing an internal procedure is called the host of the internal
procedure. The internal procedure (which appears between a CONTAINS and END statement) is
local to its host and inherits the host’s environment through host association.
intrinsic
Describes entities defined by the Fortran 95/90 language (such as data types and procedures).
Intrinsic entities can be used freely in any scoping unit.
intrinsic procedure
A subprogram supplied as part of the Fortran 95/90 library that performs array, mathematical,
numeric, character, bit manipulation, and other miscellaneous functions. Intrinsic procedures are
automatically available to any Fortran 95/90 program unit (unless specifically overridden by an
EXTERNAL statement or a procedure interface block). Also called a built-in or library procedure.
invoke
To call upon; used especially with reference to subprograms. For example, to invoke a function is
to execute the function.
I/O
See input/output.
iteration count
The number of executions of the DO range, which is determined as follows:
[(terminal value - initial value + increment value) / increment value]
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