..
  Copyright 1988-2021 Free Software Foundation, Inc.
  This is part of the GCC manual.
  For copying conditions, see the GPL license file

.. _ior:

IOR --- Bitwise logical or
**************************

.. index:: IOR

.. index:: BIOR

.. index:: IIOR

.. index:: JIOR

.. index:: KIOR

.. index:: bitwise logical or

.. index:: logical or, bitwise

.. function:: IOR

  ``IOR`` returns the bitwise Boolean inclusive-OR of :samp:`{I}` and
  :samp:`{J}`.

  :param I:
    The type shall be ``INTEGER`` or a boz-literal-constant.

  :param J:
    The type shall be ``INTEGER`` with the same
    kind type parameter as :samp:`{I}` or a boz-literal-constant.
    :samp:`{I}` and :samp:`{J}` shall not both be boz-literal-constants.

  :return:
    The return type is ``INTEGER`` with the kind type parameter of the
    arguments.
    A boz-literal-constant is converted to an ``INTEGER`` with the kind
    type parameter of the other argument as-if a call to INT occurred.

  :samp:`{Standard}:`
    Fortran 90 and later, with boz-literal-constant Fortran 2008 and later, has overloads that are GNU extensions

  :samp:`{Class}:`
    Elemental function

  :samp:`{Syntax}:`

  .. code-block:: fortran

    RESULT = IOR(I, J)

  :samp:`{Specific names}:`
    ===========  ================  ==============  ====================
    Name         Argument          Return type     Standard
    ===========  ================  ==============  ====================
    ``IOR(A)``   ``INTEGER A``     ``INTEGER``     Fortran 90 and later
    ``BIOR(A)``  ``INTEGER(1) A``  ``INTEGER(1)``  GNU extension
    ``IIOR(A)``  ``INTEGER(2) A``  ``INTEGER(2)``  GNU extension
    ``JIOR(A)``  ``INTEGER(4) A``  ``INTEGER(4)``  GNU extension
    ``KIOR(A)``  ``INTEGER(8) A``  ``INTEGER(8)``  GNU extension
    ===========  ================  ==============  ====================

  :samp:`{See also}:`
    IEOR, 
    IAND, 
    IBITS, 
    IBSET, 
    IBCLR, 
    NOT