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Manual Reference Pages  - atomic_or (3)

NAME
atomic_or(3f) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise OR operation

SYNTAX
call atomic_or(atom, value [, stat])

DESCRIPTION
atomic_or(atom, value) atomically defines ATOM with the bitwise OR between the values of ATOM and VALUE. When STAT is present and the invocation was successful, it is assigned the value 0. If it is present and the invocation has failed, it is assigned a positive value; in particular, for a coindexed ATOM, if the remote image has stopped, it is assigned the value of iso_fortran_env’s stat_stopped_image and if the remote image has failed, the value stat_failed_image.

ARGUMENTS
ATOM Scalar coarray or coindexed variable of integer type with atomic_int_kind kind.
VALUE Scalar of the same type as ATOM. If the kind is different, the value is converted to the kind of ATOM.
STAT (optional) Scalar default-kind integer variable.

EXAMPLE
Sample program: 

   program demo_atomic_or
   use iso_fortran_env
   implicit none
   integer(atomic_int_kind) :: atom[*]
      call atomic_or(atom[1], int(b’10100011101’))
   end program demo_atomic_or

STANDARD
[[TS 18508]] or later

CLASS
Atomic subroutine

SEE ALSO
atomic_define(3), atomic_fetch_or(3), iso_fortran_env(3), atomic_add(3), atomic_or(3), atomic_xor(3)

atomic_or (3) March 11, 2021
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