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<td width="885"> <font face="Verdana, Arial, Helvetica, sans-serif"><b><font size="6">Predefined
Macros </font></b></font></td>
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<p dir="ltr">The following table lists the macros, which are predefined by the
<tt>Wave</tt> library. Some of these (all except the <code class="keyword">__LINE__</code>,
<code class="keyword">__FILE__</code>, <code class="keyword">__DATE__</code>,
<code class="keyword">__TIME__</code>, <code class="keyword">__STDC__, __INCLUDE_LEVEL__</code>
and <code class="keyword">__cplusplus</code> macros, in C++0x mode the <code><tt>__STDC_GLOBAL__</tt></code>,
<tt>__STDC_FULL_REGION__</tt> and <tt>__STDC__CURRENT_REGION__</tt> macros are
not undefinable too) may be undefined from the command line of the driver executable
(<a href="wave_driver.html">see</a> the -U option) or through the function <a href="class_reference_context.html#remove_macro_definition">remove_macro_definition()</a>.</p>
<p dir="ltr">In C++0x mode the predefined macros are available at every macro
scope (except <tt>__STDC_GLOBAL__</tt>, which is available at global macro scope
only).</p>
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<td colspan="3" class="table_title"><b>Summary of predefined macros</b></td>
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<td width="28%"><b>Name</b></td>
<td width="62%"><p><code><font face="Verdana, Arial, Helvetica, sans-serif">Value</font></code></p></td>
<td width="10%">Undefinable</td>
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<td width="28%" class="table_cells"><code>__STDC__</code></td>
<td width="62%" class="table_cells"><p> 1 (a decimal constant)</p></td>
<td width="10%" class="table_cells"><p>yes</p></td>
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<td width="28%" class="table_cells"><code>__cplusplus</code></td>
<td width="62%" class="table_cells"> <p>199711L (a decimal constant), this
is defined in C++ mode only (C99 mode is off)<br>
In the C++0x mode this decimal constant is guaranteed to be larger than
199711L (the concrete value is to be defined by the C++ committee).</p></td>
<td width="10%" class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__LINE__</code></td>
<td class="table_cells"><p>The line number of the current source line (a decimal
constant)</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__FILE__</code></td>
<td class="table_cells"><p>The presumed name of the source file (a character
string literal)</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__DATE__</code></td>
<td class="table_cells"><p>The date of translation of the source file (a character
string literal of the form<br>
"Mmm dd yyyy", where the names of the months are the same as
those generated by the asctime function, and the first character of dd
is a space character if the value is less than 10). </p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__TIME__</code></td>
<td class="table_cells"><p>The time of translation of the source file (a character
string literal of the form "hh:mm:ss"<br>
as in the time generated by the asctime function).</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__INCLUDE_LEVEL__</code></td>
<td class="table_cells"><p>A decimal integer constant that represents the
depth of nesting in include <br>
files. The value of this macro is incremented on every <tt>#include</tt>
directive <br>
and decremented at every end of file. </p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__WAVE__</code><br> <code>__SPIRIT_PP__</code></td>
<td class="table_cells"><p>The version of the driver program (a hexadecinal
constant of the form 0xMmrr, where <span class="literal">'M'</span> is
the major version number, <span class="literal">'m'</span> the minor version
number and <span class="literal">'rr'</span> the release number).</p></td>
<td class="table_cells"><p>yes</p></td>
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<td class="table_cells"><code>__WAVE_VERSION__</code><br> <code>__SPIRIT_PP_VERSION__</code></td>
<td class="table_cells"><p>The full version number of the driver program (a
hexadecinal constant of the form 0xMmrrbbbb, where <span class="literal">'M'</span>
is the major version number, <span class="literal">'m'</span> the minor
version number, <span class="literal">'rr'</span> the release number and
<span class="literal">'bbbb'</span> the build number).</p></td>
<td class="table_cells"><p>yes</p></td>
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<td class="table_cells"><code>__WAVE_VERSION_STR__</code><br> <code>__SPIRIT_PP_VERSION_STR__</code></td>
<td class="table_cells"><p>The full version number of the driver program (a
character string literal of the form <span class="string">"M.m.rr.bbbb"</span>,
where <span class="literal">'M'</span> is the major version number, <span class="literal">'m'</span>
the minor version number, <span class="literal">'rr'</span> the release
number and <span class="literal">'bbbb'</span> the build number).</p></td>
<td class="table_cells"><p>yes</p></td>
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<td class="table_cells"><code>__STDC_VERSION__</code></td>
<td class="table_cells"><p>199901L (a decimal constant), this is defined in
C99 mode only</p></td>
<td class="table_cells"><p>yes</p></td>
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<td class="table_cells"><code>__WAVE_HAS_VARIADICS__</code></td>
<td class="table_cells"><p>1 (a decimal constant), this is defined in C++
mode only, if variadics and placemarkers are enabled, further it is defined
in C99 and C++0x modes</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__STDC_GLOBAL__</code></td>
<td class="table_cells"><p>1 (a decimal constant), this is defined in C++0x
mode only and only at global macro scope</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__STDC_CURRENT_REGION__</code></td>
<td class="table_cells"><p>The name of the current active macro region (a
string literal). This constant does not contain the full qualified scope
name, but only it's last part. This macro is defined in C++0x mode only.</p></td>
<td class="table_cells"><p>no</p></td>
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<td class="table_cells"><code>__STDC_FULL_REGION__</code></td>
<td class="table_cells"><p>The name of the current active macro region (a
string literal). This constant does contain the full qualified scope name,
not only it's last part. This macro is defined in C++0x mode only.</p></td>
<td class="table_cells"><p>no</p></td>
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<p class="copyright">Copyright © 2003 Hartmut Kaiser<br>
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<span class="updated">Last updated:
<!-- #BeginDate format:fcAm1m -->Saturday, May 10, 2003 11:04<!-- #EndDate -->
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