Automatic objects

An automatic object is a local data object dynamically allocated within a subprogram Fortran 2008 begins or a BLOCK construct Fortran 2008 ends . It can have a nonconstant character length, a nonconstant array bound, or both. An automatic object is not a dummy argument.

An automatic object always has the controlled automatic storage class.

You cannot specify an automatic object in any of the following statements:

COMMON
DATA
EQUIVALENCE
NAMELIST

Also, automatic objects cannot have the AUTOMATIC, PARAMETER, SAVE, or STATIC attributes. You cannot initialize or define an automatic object with a constant expression in a type declaration statement, but an automatic object can have a default initialization. An automatic object must not appear in the specification part of a main program, a module, Fortran 2008 begins

or a submodule Fortran 2008 ends