__ATTRIBUTE__(3clc)                               OpenCL Manual                              __ATTRIBUTE__(3clc)

NAME

       __attribute__

       __attribute__ ((attribute-list))

       attribute-list: attribute<sub>opt</sub> attribute-list,
       attribute<sub>opt</sub>

       attribute: attribute-token
       attribute-argument-clause<sub>opt</sub>

       attribute-token: identifier

       attribute-argument-clause: ( attribute-argument-list )

       attribute-argument-list: attribute-argument
       attribute-argument-list, attribute-argument

       attribute-argument: assignment-expression

DESCRIPTION

       This section describes the syntax with which __attribute__ may be used, and the constructs to which
       attribute specifiers bind.

       An attribute specifier is of the form __attribute__ ((attribute-list)).

       This syntax is taken directly from GCC but unlike GCC, which allows attributes to be applied only to
       functions, types, and variables, OpenCL attributes can be associated with:

       •   attributes-types(3clc)

       •   functionQualifiers(3clc)

       •   attributes-variables(3clc)

       •   attributes-blocksAndControlFlow(3clc)

       •   attributes-blocksAndControlFlow(3clc)

       In general, the rules for how an attribute binds for a given context are non-trivial and the reader is
       pointed to GCC's documentation and Maurer and Wong's paper (See the "References" section in the OpenCL
       specification[1] for details.)

SPECIFICATION

       OpenCL Specification[2]

SEE ALSO

       attributes-types(3clc), attributes-variables(3clc), attributes-blocksAndControlFlow(3clc),
       functionQualifiers(3clc)

AUTHORS

       The Khronos Group

COPYRIGHT

       Copyright © 2007-2011 The Khronos Group Inc.
       Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or
       associated documentation files (the "Materials"), to deal in the Materials without restriction, including
       without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to
       the condition that this copyright notice and permission notice shall be included in all copies or
       substantial portions of the Materials.

NOTES

        1. OpenCL specification
           page 355, section 11 - References (to Wong paper)

        2. OpenCL Specification
           page 236, section 6.11. - Attribute Qualifiers

The Khronos Group                                  01/14/2021                                __ATTRIBUTE__(3clc)