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8.226 SIZE — Determine the size of an array

Description:
Determine the extent of ARRAY along a specified dimension DIM, or the total number of elements in ARRAY if DIM is absent.
Standard:
Fortran 95 and later, with KIND argument Fortran 2003 and later
Class:
Inquiry function
Syntax:
RESULT = SIZE(ARRAY[, DIM [, KIND]])
Arguments:

ARRAY Shall be an array of any type. If ARRAY is a pointer it must be associated and allocatable arrays must be allocated.
DIM (Optional) shall be a scalar of type INTEGER and its value shall be in the range from 1 to n, where n equals the rank of ARRAY.
KIND (Optional) An INTEGER initialization expression indicating the kind parameter of the result.

Return value:
The return value is of type INTEGER and of kind KIND. If KIND is absent, the return value is of default integer kind.
Example:
          PROGRAM test_size
            WRITE(*,*) SIZE((/ 1, 2 /))    ! 2
          END PROGRAM
     

See also:
SHAPE, RESHAPE