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><H1
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><H1
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><A
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><A
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NAME="REF.DEFINE"><SPAN
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NAME="REF.DEFINE"><SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>define</SPAN
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>define</SPAN
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></H1
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></H1
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><DIV
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><DIV
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CLASS="REFNAMEDIV"
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CLASS="REFNAMEDIV"
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><A
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><A
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NAME="AEN3980"
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NAME="AEN3980"
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></A
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></A
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><H2
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><H2
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>Name</H2
|
>Name</H2
|
>Property <SPAN
|
>Property <SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define</SPAN
|
>define</SPAN
|
> -- Specify additional <TT
|
> -- Specify additional <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> symbols that
|
> symbols that
|
should go into the owning package's configuration header file.</DIV
|
should go into the owning package's configuration header file.</DIV
|
><DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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CLASS="REFSYNOPSISDIV"
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><A
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><A
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NAME="AEN3985"><H2
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NAME="AEN3985"><H2
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>Synopsis</H2
|
>Synopsis</H2
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><TABLE
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SYNOPSIS"
|
CLASS="SYNOPSIS"
|
>cdl_option <name> {
|
>cdl_option <name> {
|
define [-file=<filename>] [-format=<format>] <symbol>
|
define [-file=<filename>] [-format=<format>] <symbol>
|
…
|
…
|
}</PRE
|
}</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
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></DIV
|
></DIV
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><DIV
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><DIV
|
CLASS="REFSECT1"
|
CLASS="REFSECT1"
|
><A
|
><A
|
NAME="AEN3987"
|
NAME="AEN3987"
|
></A
|
></A
|
><H2
|
><H2
|
>Description</H2
|
>Description</H2
|
><P
|
><P
|
>Normally the configuration system generates a single
|
>Normally the configuration system generates a single
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> for each option that is active and enabled,
|
> for each option that is active and enabled,
|
with the defined symbol being the name of the option. These
|
with the defined symbol being the name of the option. These
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define's</TT
|
>#define's</TT
|
> go to the package's own configuration
|
> go to the package's own configuration
|
header file, for example <TT
|
header file, for example <TT
|
CLASS="FILENAME"
|
CLASS="FILENAME"
|
>pkgconf/kernel.h</TT
|
>pkgconf/kernel.h</TT
|
>
|
>
|
for kernel configuration options. For the majority of options this is
|
for kernel configuration options. For the majority of options this is
|
sufficient. Sometimes it is useful to have more control over which
|
sufficient. Sometimes it is useful to have more control over which
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define's</TT
|
>#define's</TT
|
> get generated.</P
|
> get generated.</P
|
><P
|
><P
|
>The <SPAN
|
>The <SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define</SPAN
|
>define</SPAN
|
> property can be used to generate an addition
|
> property can be used to generate an addition
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> if the option is both active and enabled,
|
> if the option is both active and enabled,
|
for example:</P
|
for example:</P
|
><TABLE
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><TABLE
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BORDER="5"
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BORDER="5"
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BGCOLOR="#E0E0F0"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cdl_option CYGNUM_LIBC_STDIO_FOPEN_MAX {
|
>cdl_option CYGNUM_LIBC_STDIO_FOPEN_MAX {
|
…
|
…
|
define FOPEN_MAX
|
define FOPEN_MAX
|
}</PRE
|
}</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this option is given the value 40 then the following
|
>If this option is given the value 40 then the following
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define's</TT
|
>#define's</TT
|
> will be generated in the configuration
|
> will be generated in the configuration
|
header <TT
|
header <TT
|
CLASS="FILENAME"
|
CLASS="FILENAME"
|
>pkgconf/libc.h</TT
|
>pkgconf/libc.h</TT
|
>:</P
|
>:</P
|
><TABLE
|
><TABLE
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BORDER="5"
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BORDER="5"
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BGCOLOR="#E0E0F0"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
|
WIDTH="70%"
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><TR
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><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="SCREEN"
|
CLASS="SCREEN"
|
>#define CYGNUM_LIBC_STDIO_FOPEN_MAX 40
|
>#define CYGNUM_LIBC_STDIO_FOPEN_MAX 40
|
#define FOPEN_MAX 40</PRE
|
#define FOPEN_MAX 40</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>The default <TT
|
>The default <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> can be suppressed if desired
|
> can be suppressed if desired
|
using the <SPAN
|
using the <SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>no_define</SPAN
|
>no_define</SPAN
|
> property. This is useful if the symbol should
|
> property. This is useful if the symbol should
|
only be defined in
|
only be defined in
|
<TT
|
<TT
|
CLASS="FILENAME"
|
CLASS="FILENAME"
|
>pkgconf/system.h</TT
|
>pkgconf/system.h</TT
|
> and not in
|
> and not in
|
the package's own configuration header file. The value that will be
|
the package's own configuration header file. The value that will be
|
used for this <TT
|
used for this <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> is the same as for the
|
> is the same as for the
|
default one, and depends on the option's flavor as follows:</P
|
default one, and depends on the option's flavor as follows:</P
|
><P
|
><P
|
></P
|
></P
|
><DIV
|
><DIV
|
CLASS="VARIABLELIST"
|
CLASS="VARIABLELIST"
|
><DL
|
><DL
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>flavor none</TT
|
>flavor none</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
>Options with this flavor are always enabled and have no value, so the
|
>Options with this flavor are always enabled and have no value, so the
|
constant <TT
|
constant <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>1</TT
|
>1</TT
|
> will be used.</P
|
> will be used.</P
|
></DD
|
></DD
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>flavor bool</TT
|
>flavor bool</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
>If the option is disabled then no <TT
|
>If the option is disabled then no <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> will be
|
> will be
|
generated. Otherwise the constant <TT
|
generated. Otherwise the constant <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>1</TT
|
>1</TT
|
> will be used.</P
|
> will be used.</P
|
></DD
|
></DD
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>flavor booldata</TT
|
>flavor booldata</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
>If the option is disabled then no <TT
|
>If the option is disabled then no <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> will be
|
> will be
|
generated. Otherwise the option's current value will be used.</P
|
generated. Otherwise the option's current value will be used.</P
|
></DD
|
></DD
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>flavor data</TT
|
>flavor data</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
>The option's current value will be used.</P
|
>The option's current value will be used.</P
|
></DD
|
></DD
|
></DL
|
></DL
|
></DIV
|
></DIV
|
><P
|
><P
|
>For active options with the <TT
|
>For active options with the <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>data</TT
|
>data</TT
|
> flavor, and for
|
> flavor, and for
|
active and enabled options with the <TT
|
active and enabled options with the <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>booldata</TT
|
>booldata</TT
|
>
|
>
|
flavor, either one or two <TT
|
flavor, either one or two <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define's</TT
|
>#define's</TT
|
> will be
|
> will be
|
generated. These take the following forms:</P
|
generated. These take the following forms:</P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define <symbol> <value>
|
>#define <symbol> <value>
|
#define <symbol>_<value></PRE
|
#define <symbol>_<value></PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>For the first <TT
|
>For the first <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> it is possible to control the
|
> it is possible to control the
|
format used for the value using a
|
format used for the value using a
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>-format=<format></TT
|
>-format=<format></TT
|
> option. For example, the
|
> option. For example, the
|
following can be used to output some configuration data as a C string:</P
|
following can be used to output some configuration data as a C string:</P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cdl_option <name> {
|
>cdl_option <name> {
|
…
|
…
|
define -format="\\\"%s\\\"" <symbol>
|
define -format="\\\"%s\\\"" <symbol>
|
}</PRE
|
}</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>The implementation of this facility involves concatenating the
|
>The implementation of this facility involves concatenating the
|
Tcl command <TT
|
Tcl command <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>format</TT
|
>format</TT
|
>, the format string, and the
|
>, the format string, and the
|
string representation of the option's value, and evaluating this in a
|
string representation of the option's value, and evaluating this in a
|
Tcl interpreter. Therefore the format string will be processed twice
|
Tcl interpreter. Therefore the format string will be processed twice
|
by a Tcl parser, and appropriate care has to be taken with quoting.</P
|
by a Tcl parser, and appropriate care has to be taken with quoting.</P
|
><P
|
><P
|
>The second <TT
|
>The second <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>#define</TT
|
>#define</TT
|
> will be generated only if is a
|
> will be generated only if is a
|
valid C preprocessor macro symbol. By default the symbols generated by
|
valid C preprocessor macro symbol. By default the symbols generated by
|
<SPAN
|
<SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define</SPAN
|
>define</SPAN
|
> properties will end up in the package's own configuration
|
> properties will end up in the package's own configuration
|
header file. The <TT
|
header file. The <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>-file</TT
|
>-file</TT
|
> option can be used to
|
> option can be used to
|
specify an alternative destination. At the time of writing the only
|
specify an alternative destination. At the time of writing the only
|
valid alternative definition is <TT
|
valid alternative definition is <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>-file=system.h</TT
|
>-file=system.h</TT
|
>,
|
>,
|
which will send the output to the global configuration header file
|
which will send the output to the global configuration header file
|
<TT
|
<TT
|
CLASS="FILENAME"
|
CLASS="FILENAME"
|
>pkgconf/system.h</TT
|
>pkgconf/system.h</TT
|
>.</P
|
>.</P
|
><DIV
|
><DIV
|
CLASS="CAUTION"
|
CLASS="CAUTION"
|
><P
|
><P
|
></P
|
></P
|
><TABLE
|
><TABLE
|
CLASS="CAUTION"
|
CLASS="CAUTION"
|
BORDER="1"
|
BORDER="1"
|
WIDTH="100%"
|
WIDTH="100%"
|
><TR
|
><TR
|
><TD
|
><TD
|
ALIGN="CENTER"
|
ALIGN="CENTER"
|
><B
|
><B
|
>Caution</B
|
>Caution</B
|
></TD
|
></TD
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
><P
|
><P
|
>Care has to be taken with the <TT
|
>Care has to be taken with the <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>-format</TT
|
>-format</TT
|
> option.
|
> option.
|
Because the Tcl interpreter's <TT
|
Because the Tcl interpreter's <TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>format</TT
|
>format</TT
|
> command is
|
> command is
|
used, this property is subject to any problems with the implementation
|
used, this property is subject to any problems with the implementation
|
of this in the Tcl library. Generally there should be no problems with
|
of this in the Tcl library. Generally there should be no problems with
|
string data or with integers up to 32 bits, but there may well be
|
string data or with integers up to 32 bits, but there may well be
|
problems if 64-bit data is involved. This issue may be addressed in a
|
problems if 64-bit data is involved. This issue may be addressed in a
|
future release.</P
|
future release.</P
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
></DIV
|
></DIV
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="REFSECT1"
|
CLASS="REFSECT1"
|
><A
|
><A
|
NAME="AEN4053"
|
NAME="AEN4053"
|
></A
|
></A
|
><H2
|
><H2
|
>Example</H2
|
>Example</H2
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cdl_component CYG_HAL_STARTUP {
|
>cdl_component CYG_HAL_STARTUP {
|
display "Startup type"
|
display "Startup type"
|
flavor data
|
flavor data
|
legal_values {"RAM" "ROM" }
|
legal_values {"RAM" "ROM" }
|
default_value {"RAM"}
|
default_value {"RAM"}
|
no_define
|
no_define
|
define -file=system.h CYG_HAL_STARTUP
|
define -file=system.h CYG_HAL_STARTUP
|
…
|
…
|
}</PRE
|
}</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="REFSECT1"
|
CLASS="REFSECT1"
|
><A
|
><A
|
NAME="AEN4056"
|
NAME="AEN4056"
|
></A
|
></A
|
><H2
|
><H2
|
>See Also</H2
|
>See Also</H2
|
><P
|
><P
|
>Properties <A
|
>Properties <A
|
HREF="ref.define-format.html"
|
HREF="ref.define-format.html"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define_format</SPAN
|
>define_format</SPAN
|
></A
|
></A
|
>,
|
>,
|
<A
|
<A
|
HREF="ref.define-header.html"
|
HREF="ref.define-header.html"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define_header</SPAN
|
>define_header</SPAN
|
></A
|
></A
|
>,
|
>,
|
<A
|
<A
|
HREF="ref.define-proc.html"
|
HREF="ref.define-proc.html"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define_proc</SPAN
|
>define_proc</SPAN
|
></A
|
></A
|
>,
|
>,
|
<A
|
<A
|
HREF="ref.if-define.html"
|
HREF="ref.if-define.html"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>if_define</SPAN
|
>if_define</SPAN
|
></A
|
></A
|
> and
|
> and
|
<A
|
<A
|
HREF="ref.no-define.html"
|
HREF="ref.no-define.html"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>no_define</SPAN
|
>no_define</SPAN
|
></A
|
></A
|
>.</P
|
>.</P
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="NAVFOOTER"
|
CLASS="NAVFOOTER"
|
><HR
|
><HR
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
WIDTH="100%"><TABLE
|
WIDTH="100%"><TABLE
|
SUMMARY="Footer navigation table"
|
SUMMARY="Footer navigation table"
|
WIDTH="100%"
|
WIDTH="100%"
|
BORDER="0"
|
BORDER="0"
|
CELLPADDING="0"
|
CELLPADDING="0"
|
CELLSPACING="0"
|
CELLSPACING="0"
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="ref.default-value.html"
|
HREF="ref.default-value.html"
|
ACCESSKEY="P"
|
ACCESSKEY="P"
|
>Prev</A
|
>Prev</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="cdl-guide.html"
|
HREF="cdl-guide.html"
|
ACCESSKEY="H"
|
ACCESSKEY="H"
|
>Home</A
|
>Home</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="ref.define-format.html"
|
HREF="ref.define-format.html"
|
ACCESSKEY="N"
|
ACCESSKEY="N"
|
>Next</A
|
>Next</A
|
></TD
|
></TD
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>default_value</SPAN
|
>default_value</SPAN
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="reference.html"
|
HREF="reference.html"
|
ACCESSKEY="U"
|
ACCESSKEY="U"
|
>Up</A
|
>Up</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
><SPAN
|
><SPAN
|
CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define_format</SPAN
|
>define_format</SPAN
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
></DIV
|
></DIV
|
></BODY
|
></BODY
|
></HTML
|
></HTML
|
|
|
