!
! Copyright (c) 2019, Advanced Micro Devices, Inc. All rights reserved.
!
! CPUPC-2613-F2008: The BLOCK construct allows declarations of 
! entities within executable code.
!
! Date of Modification: Fri November 8th, 2019
! 
! Purpose: Test if an OPTIONAL clause for variable definition inside of a BLOCK statement produces error.
!
PROGRAM BLK08
  IMPLICIT NONE
  INTEGER I
  INTEGER, PARAMETER :: M = 10
  REAL A(M), B(M)
  INTEGER, PARAMETER :: N = 1
  LOGICAL EXP(N), RES(N)
  CALL CHECK(RES, EXP, N)

  DO I=1,M
  BLOCK
    REAL TMP
    A(I) = I
    B(I) = 2 * I
    TMP = A(I)**3
    IF (TMP > B(I)) B(I) = TMP
  END BLOCK
  END DO
  DO I=1,M
    PRINT *, A
    PRINT *, B
  END DO

  CALL SUB1(10)
END PROGRAM

SUBROUTINE SUB1(J, K, L)
  OPTIONAL K, L
  BLOCK
  OPTIONAL K, L
  END BLOCK
END SUBROUTINE