9.218 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