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8.215 RANK — Rank of a data object

Description:
RANK(A) returns the rank of a scalar or array data object.
Standard:
Technical Specification (TS) 29113
Class:
Inquiry function
Syntax:
RESULT = RANK(A)
Arguments:

A can be of any type

Return value:
The return value is of type INTEGER and of the default integer kind. For arrays, their rank is returned; for scalars zero is returned.
Example:
          program test_rank
            integer :: a
            real, allocatable :: b(:,:)
          
            print *, rank(a), rank(b) ! Prints:  0  2
          end program test_rank