sdk/2.0/docs/man/sub_group_scan_exclusive.xml

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<refentry>
    <refentryinfo>
        <keywordset>
            <keyword>sub_group_scan_exclusive</keyword>
        </keywordset>
    </refentryinfo>

    <refmeta>
        <refentrytitle>sub_group_scan_exclusive</refentrytitle>

        <refmiscinfo>
            <copyright>
                <year>2007-2013</year>
                <holder>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.</holder>
            </copyright>
        </refmiscinfo>
        <manvolnum>3</manvolnum>
    </refmeta>

<!-- ================================ SYNOPSIS -->

    <refnamediv id="sub_group_scan_exclusive">
        <refname>sub_group_scan_exclusive</refname>

        <refpurpose>
            Do an exclusive prefix-sum operation for all work-items in a sub-group.
        </refpurpose>
    </refnamediv>

    <refsynopsisdiv xmlns:xlink="http://www.w3.org/1999/xlink"><title></title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>
                    gentype
                    <function>
                        sub_group_scan_exclusive&lt; <varname>op</varname> &gt;
                    </function>
                </funcdef>

                <paramdef>gentype<parameter>x</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>

    </refsynopsisdiv>

<!-- ================================ DESCRIPTION  -->

    <refsect1 id="description"><title>Description</title>
        <para>
            Do an exclusive scan operation specified 
            by &lt; <varname>op</varname> &gt; of all values specified by work-items 
            in a sub-group. The scan results are 
            returned for each work-item.
        </para>

        <para>
            The scan order is defined by increasing 
            1D linear global ID within the sub-group.
        </para>

        <para>
            We use the generic type name gentype to indicate the built-in data 
            types <type>half</type>, <type>int</type>, <type>uint</type>, 
            <type>long</type>, <type>ulong</type>, <type>float</type> or 
            <type>double</type> as the type for the arguments. Type half
            requires the <citerefentry><refentrytitle>cl_khr_fp16</refentrytitle></citerefentry> 
            extension. Type double is optional.
        </para>

    </refsect1>

<!-- ================================ NOTES  -->

<!--
    <refsect1 id="notes"><title>Notes</title>
    </refsect1>
-->

<!-- ================================ EXAMPLE  -->
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            Example
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                <colspec colname="col1" colnum="1" />
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                        <entry>
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        </informaltable>
    </refsect2>
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<!-- ================================ SPECIFICATION  -->
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    <refsect1 id="specification"><title>Specification</title>
        <para>
            <imageobject>
                <imagedata fileref="pdficon_small1.gif" format="gif" />
            </imageobject>

            <olink uri="sub_group_scan_exclusive">OpenCL Specification</olink>
        </para>
    </refsect1>

<!-- ================================ ALSO SEE  -->

    <refsect1 id="seealso"><title>Also see</title>
        <para>
            <citerefentry><refentrytitle>cl_khr_subgroups</refentrytitle></citerefentry>
        </para>
    </refsect1>

<!-- ============================== COPYRIGHT -->
<!-- Content included from copyright.inc.xsl -->

    <refsect3 id="Copyright"><title></title>
        <imageobject>
                <imagedata fileref="KhronosLogo.jpg" format="jpg" />
        </imageobject>
        <para />
    </refsect3>

<!-- 23-Dec-2013, rev. 19 -->
</refentry>