PARITY — Reduction with exclusive OR#

PARITY(MASK, DIM)#

Calculates the parity, i.e. the reduction using .XOR., of MASK along dimension DIM.

Parameters:

  • MASK – Shall be an array of type LOGICAL

  • 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 MASK.

Returns:

The result is of the same type as MASK.

Standard:

Fortran 2008 and later

Class:

Transformational function

Syntax:
RESULT = PARITY(MASK[, DIM])
Example:
PROGRAM test_sum
  LOGICAL :: x(2) = [ .true., .false. ]
  print *, PARITY(x) ! prints "T" (true).
END PROGRAM