source: CIVL/examples/omp/dataracebench-1.3.2/micro-benchmarks-fortran/DRB017-outputdep-var-yes.f95

!!!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!!!
!!! Copyright (c) 2017-20, Lawrence Livermore National Security, LLC
!!! and DataRaceBench project contributors. See the DataRaceBench/COPYRIGHT file for details.
!!!
!!! SPDX-License-Identifier: (BSD-3-Clause)
!!!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!!!

!The loop in this example cannot be parallelized.
!
!Data race pairs: we allow two pairs to preserve the original code pattern.
! 1. x@50 vs. x@51
! 2. x@51 vs. x@51

program DRB017_outputdep_var_yes
    use omp_lib
    implicit none

    integer len, i, x, argCount, allocStatus, rdErr, ix
    character(len=80), dimension(:), allocatable :: args
    integer, dimension (:), allocatable :: a

    len = 100
    x = 10

    argCount = command_argument_count()
    if (argCount == 0) then
        write (*,'(a)') "No command line arguments provided."
    end if

    allocate(args(argCount), stat=allocStatus)
    if (allocStatus > 0) then
        write (*,'(a)') "Allocation error, program terminated."
        stop
    end if

    do ix = 1, argCount
        call get_command_argument(ix,args(ix))
    end do

    if (argCount >= 1) then
        read (args(1), '(i10)', iostat=rdErr) len
        if (rdErr /= 0 ) then
            write (*,'(a)') "Error, invalid integer value."
        end if
    end if

    allocate (a(len))
    !$omp parallel do
    do i = 1, len
        a(i) = x
        x = i
    end do
    !$omp end parallel do

    print 100, x, a(0)
    100 format ("x=",i3,2x,"a(0)=",i3)

    deallocate(args,a)
end program