<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Predefined Macros</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link href="theme/style.css" rel="stylesheet" type="text/css"> </head> <body> <table width="100%" border="0" cellspacing="2" background="theme/bkd2.gif"> <tr> <td width="21"> <h1></h1></td> <td width="885"> <font face="Verdana, Arial, Helvetica, sans-serif"><b><font size="6">Predefined Macros </font></b></font></td> <td width="96"><a href="http://www.boost.org"><img src="theme/wave.gif" width="93" height="68" align="right" border="0"></a></td> </tr> </table> <br> <table border="0"> <tr> <td width="10"></td> <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> <td width="30"><a href="class_reference_inptpolcy.html"><img src="theme/l_arr.gif" width="20" height="19" border="0"></a></td> <td width="30"><a href="macro_expansion_process.html"><img src="theme/r_arr.gif" border="0"></a></td> </tr> </table> <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">__BASE_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) 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> <table width="90%" border="0" align="center"> <tr> <td colspan="3" class="table_title"><b>Summary of predefined macros</b></td> </tr> <tr class="table_title"> <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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <td class="table_cells"><code>__BASE_FILE__</code></td> <td class="table_cells"><p> This macro expands to the name of the main input file (a character string literal). This is the source file that was specified during construction of the <a href="class_reference_context.html"><tt>wave::context</tt></a> template.</p></td> <td class="table_cells"><p>no</p></td> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <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 hexadecimal 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> </tr> <tr> <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> </tr> <tr> <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> </tr> <tr> <td class="table_cells"><code>__STDC_HOSTED__</code></td> <td class="table_cells"><p>0L (a decimal constant), this is defined in C99 mode only</p></td> <td class="table_cells"><p>yes</p></td> </tr> <tr> <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, and it is defined in the C99 mode</p></td> <td class="table_cells"><p>no</p></td> </tr> <tr> <td class="table_cells"><code>__WAVE_CONFIG__</code></td> <td class="table_cells"><p>The configuration information used during the compilation of the Wave library. This is a hexadecimal constant, where each of the bits represents a certain configuration option enabled/disabled during the compilation. You can query this contant using the following macro constants available in the <tt>wave_config_constant.hpp</tt> file:</p> <blockquote> <p> <tt>BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS_CONFIG</tt> (value: <span class="literal">0x1</span>) <br> Variadics and placemarkers are supported</p> <p><tt>BOOST_WAVE_SUPPORT_PRAGMA_ONCE_CONFIG</tt> (value: <span class="literal">0x02</span>)<br> <span class="preprocessor">#pragma once</span> (<span class="keyword">_Pragma(once))</span> is supported </p> <p><tt>BOOST_WAVE_SUPPORT_MS_EXTENSIONS_CONFIG</tt> (value: <span class="literal">0x04</span>)<br>MS Extensions are supported </p> <p><tt>BOOST_WAVE_PREPROCESS_PRAGMA_BODY_CONFIG</tt> (value: <span class="literal">0x08</span>)<br> The bodies of <span class="preprocessor">#pragma</span> statements (operator <span class="keyword">_Pragma</span>) will be preprocessed <p><tt>BOOST_WAVE_USE_STRICT_LEXER_CONFIG</tt> (value: <span class="literal">0x10</span>)<br> The C/C++ lexers recognize the strict C99/C++ basic source character set. If it is not defined or defined to zero, the lexers recognize the <span class="string">'$'</span> character as part of identifiers.</p> </blockquote> <p><br> </p></td> <td class="table_cells"><p>yes</p></td> </tr> </table> <br> <table border="0"> <tr> <td width="10"></td> <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> <td width="30"><a href="class_reference_inptpolcy.html"><img src="theme/l_arr.gif" width="20" height="19" border="0"></a></td> <td width="30"><a href="macro_expansion_process.html"><img src="theme/r_arr.gif" border="0"></a></td> </tr> </table> <hr size="1"> <p class="copyright">Copyright © 2003-2010 Hartmut Kaiser<br> <br> <font size="2">Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) </font> </p> <span class="updated"></span> <p class="copyright"><span class="updated">Last updated: <!-- #BeginDate format:fcAm1m -->Monday, March 13, 2006 13:47<!-- #EndDate --> </span></p> </body> </html>