IPARITY — Bitwise XOR of array elements#

IPARITY(ARRAY, DIM, MASK)#

Reduces with bitwise XOR (exclusive or) the elements of ARRAY along dimension DIM if the corresponding element in MASK is TRUE.

Parameters:

ARRAY – Shall be an array of type INTEGER
DIM – (Optional) shall be a scalar of type INTEGER with a value in the range from 1 to n, where n equals the rank of ARRAY.
MASK – (Optional) shall be of type LOGICAL and either be a scalar or an array of the same shape as ARRAY.

Returns:

The result is of the same type as ARRAY.

Standard:

Fortran 2008 and later

Class:

Transformational function

Syntax:

RESULT = IPARITY(ARRAY[, MASK])
RESULT = IPARITY(ARRAY, DIM[, MASK])

Example:

PROGRAM test_iparity
  INTEGER(1) :: a(2)

  a(1) = int(b'00100100', 1)
  a(2) = int(b'01101010', 1)

  ! prints 01001110
  PRINT '(b8.8)', IPARITY(a)
END PROGRAM