<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetCreate">
	<refmeta>
	    <refentrytitle>FcCharSetCreate</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetCreate</refname>
	    <refpurpose>Create an empty character set</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetCreate</function></funcdef>
		<paramdef>void<parameter></parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
<function>FcCharSetCreate</function> allocates and initializes a new empty
character set object.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetDestroy">
	<refmeta>
	    <refentrytitle>FcCharSetDestroy</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetDestroy</refname>
	    <refpurpose>Destroy a character set</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>void <function>FcCharSetDestroy</function></funcdef>
		<paramdef>FcCharSet *<parameter>fcs</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
<function>FcCharSetDestroy</function> decrements the reference count 
<parameter>fcs</parameter>.  If the reference count becomes zero, all
memory referenced is freed.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetAddChar">
	<refmeta>
	    <refentrytitle>FcCharSetAddChar</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetAddChar</refname>
	    <refpurpose>Add a character to a charset</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetAddChar</function></funcdef>
		<paramdef>FcCharSet *<parameter>fcs</parameter></paramdef>
		<paramdef>FcChar32 <parameter>ucs4</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
<function>FcCharSetAddChar</function> adds a single Unicode char to the set,
returning FcFalse on failure, either as a result of a constant set or from
running out of memory.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetDelChar">
	<refmeta>
	    <refentrytitle>FcCharSetDelChar</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetDelChar</refname>
	    <refpurpose>Add a character to a charset</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetDelChar</function></funcdef>
		<paramdef>FcCharSet *<parameter>fcs</parameter></paramdef>
		<paramdef>FcChar32 <parameter>ucs4</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
<function>FcCharSetDelChar</function> deletes a single Unicode char from the set,
returning FcFalse on failure, either as a result of a constant set or from
running out of memory.
	    </para>
	</refsect1>
	<refsect1><title>Since</title>
	    <para>version 2.9.0</para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetCopy">
	<refmeta>
	    <refentrytitle>FcCharSetCopy</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetCopy</refname>
	    <refpurpose>Copy a charset</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetCopy</function></funcdef>
		<paramdef>FcCharSet *<parameter>src</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Makes a copy of <parameter>src</parameter>; note that this may not actually do anything more
than increment the reference count on <parameter>src</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetEqual">
	<refmeta>
	    <refentrytitle>FcCharSetEqual</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetEqual</refname>
	    <refpurpose>Compare two charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetEqual</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns whether <parameter>a</parameter> and <parameter>b</parameter>
contain the same set of Unicode chars.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetIntersect">
	<refmeta>
	    <refentrytitle>FcCharSetIntersect</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetIntersect</refname>
	    <refpurpose>Intersect charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetIntersect</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns a set including only those chars found in both
<parameter>a</parameter> and <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetUnion">
	<refmeta>
	    <refentrytitle>FcCharSetUnion</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetUnion</refname>
	    <refpurpose>Add charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetUnion</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns a set including only those chars found in either <parameter>a</parameter> or <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetSubtract">
	<refmeta>
	    <refentrytitle>FcCharSetSubtract</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetSubtract</refname>
	    <refpurpose>Subtract charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetSubtract</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns a set including only those chars found in <parameter>a</parameter> but not <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetMerge">
	<refmeta>
	    <refentrytitle>FcCharSetMerge</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetMerge</refname>
	    <refpurpose>Merge charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetMerge</function></funcdef>
		<paramdef>FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
		<paramdef>FcBool *<parameter>changed</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Adds all chars in <parameter>b</parameter> to <parameter>a</parameter>.
In other words, this is an in-place version of FcCharSetUnion.
If <parameter>changed</parameter> is not NULL, then it returns whether any new
chars from <parameter>b</parameter> were added to <parameter>a</parameter>.
Returns FcFalse on failure, either when <parameter>a</parameter> is a constant
set or from running out of memory.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetHasChar">
	<refmeta>
	    <refentrytitle>FcCharSetHasChar</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetHasChar</refname>
	    <refpurpose>Check a charset for a char</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetHasChar</function></funcdef>
		<paramdef>const FcCharSet *<parameter>fcs</parameter></paramdef>
		<paramdef>FcChar32 <parameter>ucs4</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns whether <parameter>fcs</parameter> contains the char <parameter>ucs4</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetCount">
	<refmeta>
	    <refentrytitle>FcCharSetCount</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetCount</refname>
	    <refpurpose>Count entries in a charset</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetCount</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns the total number of Unicode chars in <parameter>a</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetIntersectCount">
	<refmeta>
	    <refentrytitle>FcCharSetIntersectCount</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetIntersectCount</refname>
	    <refpurpose>Intersect and count charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetIntersectCount</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns the number of chars that are in both <parameter>a</parameter> and <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetSubtractCount">
	<refmeta>
	    <refentrytitle>FcCharSetSubtractCount</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetSubtractCount</refname>
	    <refpurpose>Subtract and count charsets</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetSubtractCount</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns the number of chars that are in <parameter>a</parameter> but not in <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetIsSubset">
	<refmeta>
	    <refentrytitle>FcCharSetIsSubset</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetIsSubset</refname>
	    <refpurpose>Test for charset inclusion</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcBool <function>FcCharSetIsSubset</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>const FcCharSet *<parameter>b</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Returns whether <parameter>a</parameter> is a subset of <parameter>b</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetFirstPage">
	<refmeta>
	    <refentrytitle>FcCharSetFirstPage</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetFirstPage</refname>
	    <refpurpose>Start enumerating charset contents</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetFirstPage</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>FcChar32[FC_CHARSET_MAP_SIZE] <parameter>map</parameter></paramdef>
		<paramdef>FcChar32 *<parameter>next</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Builds an array of bits in <parameter>map</parameter> marking the
first page of Unicode coverage of <parameter>a</parameter>.
<parameter>*next</parameter> is set to contains the base code point
for the next page in <parameter>a</parameter>.  Returns the base code
point for the page, or <constant>FC_CHARSET_DONE</constant> if
<parameter>a</parameter> contains no pages.  As an example, if
<function>FcCharSetFirstPage</function> returns
<literal>0x300</literal> and fills <parameter>map</parameter> with
<literallayout class="monospaced">
0xffffffff 0xffffffff 0x01000008 0x44300002 0xffffd7f0 0xfffffffb 0xffff7fff 0xffff0003
</literallayout>
Then the page contains code points <literal>0x300</literal> through
<literal>0x33f</literal> (the first 64 code points on the page)
because <parameter>map[0]</parameter> and
<parameter>map[1]</parameter> both have all their bits set.  It also
contains code points <literal>0x343</literal> (<parameter>0x300 + 32*2
+ (4-1)</parameter>) and <literal>0x35e</literal> (<parameter>0x300 +
32*2 + (31-1)</parameter>) because <parameter>map[2]</parameter> has
the 4th and 31st bits set.  The code points represented by
<literal>map[3]</literal> and later are left as an excercise for the
reader ;).
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetNextPage">
	<refmeta>
	    <refentrytitle>FcCharSetNextPage</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetNextPage</refname>
	    <refpurpose>Continue enumerating charset contents</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetNextPage</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>FcChar32[FC_CHARSET_MAP_SIZE] <parameter>map</parameter></paramdef>
		<paramdef>FcChar32 *<parameter>next</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
Builds an array of bits in <parameter>map</parameter> marking the
Unicode coverage of <parameter>a</parameter> for page containing
<parameter>*next</parameter> (see the
<function>FcCharSetFirstPage</function> description for details).
<parameter>*next</parameter> is set to contains the base code point
for the next page in <parameter>a</parameter>.  Returns the base of
code point for the page, or <constant>FC_CHARSET_DONE</constant> if
<parameter>a</parameter> does not contain
<parameter>*next</parameter>.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetCoverage">
	<refmeta>
	    <refentrytitle>FcCharSetCoverage</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetCoverage</refname>
	    <refpurpose>DEPRECATED return coverage for a Unicode page</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcChar32 <function>FcCharSetCoverage</function></funcdef>
		<paramdef>const FcCharSet *<parameter>a</parameter></paramdef>
		<paramdef>FcChar32<parameter>page</parameter></paramdef>
		<paramdef>FcChar32[8]<parameter>result</parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
DEPRECATED
This function returns a bitmask in <parameter>result</parameter> which
indicates which code points in
<parameter>page</parameter> are included in <parameter>a</parameter>.
<function>FcCharSetCoverage</function> returns the next page in the charset which has any
coverage.
	    </para>
	</refsect1>
    </refentry>
<!--
   fontconfig/doc/func.sgml
  
   Copyright © 2003 Keith Packard
  
   Permission to use, copy, modify, distribute, and sell this software and its
   documentation for any purpose is hereby granted without fee, provided that
   the above copyright notice appear in all copies and that both that
   copyright notice and this permission notice appear in supporting
   documentation, and that the name of the author(s) not be used in
   advertising or publicity pertaining to distribution of the software without
   specific, written prior permission.  The authors make no
   representations about the suitability of this software for any purpose.  It
   is provided "as is" without express or implied warranty.
  
   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   PERFORMANCE OF THIS SOFTWARE.
 -->
    <refentry id="FcCharSetNew">
	<refmeta>
	    <refentrytitle>FcCharSetNew</refentrytitle>
	    <manvolnum>3</manvolnum>
	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>
	</refmeta>
	<refnamediv>
	    <refname>FcCharSetNew</refname>
	    <refpurpose>DEPRECATED alias for FcCharSetCreate</refpurpose>
	</refnamediv>
	<refsynopsisdiv>
	<funcsynopsis>
	<funcsynopsisinfo>
#include &lt;fontconfig/fontconfig.h&gt;
	</funcsynopsisinfo>
	<funcprototype>
	    <funcdef>FcCharSet * <function>FcCharSetNew</function></funcdef>
		<paramdef>void<parameter></parameter></paramdef>
	</funcprototype>
	</funcsynopsis>
	</refsynopsisdiv>
	<refsect1><title>Description</title>
	    <para>
<function>FcCharSetNew</function> is a DEPRECATED alias for FcCharSetCreate.
	    </para>
	</refsect1>
    </refentry>
