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predefined_macros.html

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  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    2. 

  2. <html>
    3. 

  3. <head>
    4. 

  4. <title>Predefined Macros</title>
    5. 

  5. <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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  6. <link href="theme/style.css" rel="stylesheet" type="text/css">
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  7. </head>
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  8. 

  9. <body>
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  10. <table width="100%" border="0" cellspacing="2" background="theme/bkd2.gif">
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  11.   <tr> 
    12. 

  12.     <td width="21"> <h1></h1></td>
    13. 

  13.     <td width="885"> <font face="Verdana, Arial, Helvetica, sans-serif"><b><font size="6">Predefined 
    14. 

  14.       Macros </font></b></font></td>
    15. 

  15.     <td width="96"><a href="http://www.boost.org"><img src="theme/wave.gif" width="93" height="68" align="right" border="0"></a></td>
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  16.   </tr>
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  17. </table>
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  18. <br>
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  19. <table border="0">
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  20.   <tr> 
    21. 

  21.     <td width="10"></td>
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  22.     <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td>
    23. 

  23.     <td width="30"><a href="class_reference_inptpolcy.html"><img src="theme/l_arr.gif" width="20" height="19" border="0"></a></td>
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  24.     <td width="30"><a href="macro_expansion_process.html"><img src="theme/r_arr.gif" border="0"></a></td>
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  25.   </tr>
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  26. </table>
    27. 

  27. <p dir="ltr">The following table lists the macros, which are predefined by the 
    28. 

  28.   <tt>Wave</tt> library. Some of these (all except the <code class="keyword">__LINE__</code>, 
    29. 

  29.   <code class="keyword">__FILE__</code>, <code class="keyword">__BASE_FILE__</code>, <code class="keyword">__DATE__</code>, 
    30. 

  30.   <code class="keyword">__TIME__</code>, <code class="keyword">__STDC__, __INCLUDE_LEVEL__</code> 
    31. 

  31.   and <code class="keyword">__cplusplus</code> macros) may be undefined from the command line of the driver executable 
    32. 

  32.   (<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>
    33. 

  33. <table width="90%" border="0" align="center">
    34. 

  34.   <tr> 
    35. 

  35.     <td colspan="3" class="table_title"><b>Summary of predefined macros</b></td>
    36. 

  36.   </tr>
    37. 

  37.   <tr class="table_title"> 
    38. 

  38.     <td width="28%"><b>Name</b></td>
    39. 

  39.     <td width="62%"><p><code><font face="Verdana, Arial, Helvetica, sans-serif">Value</font></code></p></td>
    40. 

  40.     <td width="10%">Undefinable</td>
    41. 

  41.   </tr>
    42. 

  42.   <tr> 
    43. 

  43.     <td width="28%" class="table_cells"><code>__STDC__</code></td>
    44. 

  44.     <td width="62%" class="table_cells"><p> 1 (a decimal constant)</p></td>
    45. 

  45.     <td width="10%" class="table_cells"><p>yes</p></td>
    46. 

  46.   </tr>
    47. 

  47.   <tr> 
    48. 

  48.     <td width="28%" class="table_cells"><code>__cplusplus</code></td>
    49. 

  49.     <td width="62%" class="table_cells"> <p>199711L (a decimal constant), this 
    50. 

  50.         is defined in C++ mode only (C99 mode is off)<br>
    51. 

  51.         In the C++0x mode this decimal constant is guaranteed to be larger than 
    52. 

  52.         199711L (the concrete value is to be defined by the C++ committee).</p></td>
    53. 

  53.     <td width="10%" class="table_cells"><p>no</p></td>
    54. 

  54.   </tr>
    55. 

  55.   <tr> 
    56. 

  56.     <td class="table_cells"><code>__LINE__</code></td>
    57. 

  57.     <td class="table_cells"><p>The line number of the current source line (a decimal 
    58. 

  58.         constant)</p></td>
    59. 

  59.     <td class="table_cells"><p>no</p></td>
    60. 

  60.   </tr>
    61. 

  61.   <tr>
    62. 

  62.     <td class="table_cells"><code>__FILE__</code></td>
    63. 

  63.     <td class="table_cells"><p>The presumed name of the source file (a character string literal)</p></td>
    64. 

  64.     <td class="table_cells"><p>no</p></td>
    65. 

  65.   </tr>
    66. 

  66.   <tr>
    67. 

  67.     <td class="table_cells"><code>__BASE_FILE__</code></td>
    68. 

  68.     <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>
    69. 

  69.     <td class="table_cells"><p>no</p></td>
    70. 

  70.   </tr>
    71. 

  71.   <tr> 
    72. 

  72.     <td class="table_cells"><code>__DATE__</code></td>
    73. 

  73.     <td class="table_cells"><p>The date of translation of the source file (a character 
    74. 

  74.         string literal of the form<br>
    75. 

  75.         &quot;Mmm dd yyyy&quot;, where the names of the months are the same as 
    76. 

  76.         those generated by the asctime function, and the first character of dd 
    77. 

  77.         is a space character if the value is less than 10). </p></td>
    78. 

  78.     <td class="table_cells"><p>no</p></td>
    79. 

  79.   </tr>
    80. 

  80.   <tr> 
    81. 

  81.     <td class="table_cells"><code>__TIME__</code></td>
    82. 

  82.     <td class="table_cells"><p>The time of translation of the source file (a character 
    83. 

  83.         string literal of the form &quot;hh:mm:ss&quot;<br>
    84. 

  84.         as in the time generated by the asctime function).</p></td>
    85. 

  85.     <td class="table_cells"><p>no</p></td>
    86. 

  86.   </tr>
    87. 

  87.   <tr> 
    88. 

  88.     <td class="table_cells"><code>__INCLUDE_LEVEL__</code></td>
    89. 

  89.     <td class="table_cells"><p>A decimal integer constant that represents the 
    90. 

  90.         depth of nesting in include <br>
    91. 

  91.         files. The value of this macro is incremented on every <tt>#include</tt> 
    92. 

  92.         directive <br>
    93. 

  93.         and decremented at every end of file. </p></td>
    94. 

  94.     <td class="table_cells"><p>no</p></td>
    95. 

  95.   </tr>
    96. 

  96.   <tr> 
    97. 

  97.     <td class="table_cells"><code>__WAVE__</code><br> <code>__SPIRIT_PP__</code></td>
    98. 

  98.     <td class="table_cells"><p>The version of the driver program (a hexadecinal 
    99. 

  99.         constant of the form 0xMmrr, where <span class="literal">'M'</span> is 
    100. 

  100.         the major version number, <span class="literal">'m'</span> the minor version 
    101. 

  101.         number and <span class="literal">'rr'</span> the release number).</p></td>
    102. 

  102.     <td class="table_cells"><p>yes</p></td>
    103. 

  103.   </tr>
    104. 

  104.   <tr> 
    105. 

  105.     <td class="table_cells"><code>__WAVE_VERSION__</code><br> <code>__SPIRIT_PP_VERSION__</code></td>
    106. 

  106.     <td class="table_cells"><p>The full version number of the driver program (a 
    107. 

  107.         hexadecimal constant of the form 0xMmrrbbbb, where <span class="literal">'M'</span> 
    108. 

  108.         is the major version number, <span class="literal">'m'</span> the minor 
    109. 

  109.         version number, <span class="literal">'rr'</span> the release number and 
    110. 

  110.         <span class="literal">'bbbb'</span> the build number).</p></td>
    111. 

  111.     <td class="table_cells"><p>yes</p></td>
    112. 

  112.   </tr>
    113. 

  113.   <tr> 
    114. 

  114.     <td class="table_cells"><code>__WAVE_VERSION_STR__</code><br> <code>__SPIRIT_PP_VERSION_STR__</code></td>
    115. 

  115.     <td class="table_cells"><p>The full version number of the driver program (a 
    116. 

  116.         character string literal of the form <span class="string">&quot;M.m.rr.bbbb&quot;</span>, 
    117. 

  117.         where <span class="literal">'M'</span> is the major version number, <span class="literal">'m'</span> 
    118. 

  118.         the minor version number, <span class="literal">'rr'</span> the release 
    119. 

  119.         number and <span class="literal">'bbbb'</span> the build number).</p></td>
    120. 

  120.     <td class="table_cells"><p>yes</p></td>
    121. 

  121.   </tr>
    122. 

  122.   <tr>
    123. 

  123.     <td class="table_cells"><code>__STDC_VERSION__</code></td>
    124. 

  124.     <td class="table_cells"><p>199901L (a decimal constant), this is defined in C99 and C++0x modes only</p></td>
    125. 

  125.     <td class="table_cells"><p>yes</p></td>
    126. 

  126.   </tr>
    127. 

  127.   <tr>
    128. 

  128.     <td class="table_cells"><code>__STDC_HOSTED__</code></td>
    129. 

  129.     <td class="table_cells"><p>0L (a decimal constant), this is defined in C99 and C++0x modes only</p></td>
    130. 

  130.     <td class="table_cells"><p>yes</p></td>
    131. 

  131.   </tr>
    132. 

  132.   <tr> 
    133. 

  133.     <td class="table_cells"><code>__WAVE_HAS_VARIADICS__</code></td>
    134. 

  134.     <td class="table_cells"><p>1 (a decimal constant), this is defined in C++ 
    135. 

  135.         mode only if variadics and placemarkers are enabled, and it is defined 
    136. 

  136.         in the C99 and C++0x modes</p></td>
    137. 

  137.     <td class="table_cells"><p>no</p></td>
    138. 

  138.   </tr>
    139. 

  139.   <tr>
    140. 

  140.     <td class="table_cells"><code>__WAVE_CONFIG__</code></td>
    141. 

  141.     <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>
    142. 

  142.       <blockquote>
    143. 

  143.               <p> <tt>BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS_CONFIG</tt> (value: <span class="literal">0x1</span>) <br>
    144. 

  144.               Variadics and placemarkers are supported</p>
    145. 

  145.         <p><tt>BOOST_WAVE_SUPPORT_PRAGMA_ONCE_CONFIG</tt> (value: <span class="literal">0x02</span>)<br>
    146. 

  146.           <span class="preprocessor">#pragma once</span> (<span class="keyword">_Pragma(once))</span> is supported </p>
    147. 

  147.           <p><tt>BOOST_WAVE_SUPPORT_MS_EXTENSIONS_CONFIG</tt> (value: <span class="literal">0x04</span>)<br>MS Extensions are supported </p>
    148. 

  148.           <p><tt>BOOST_WAVE_PREPROCESS_PRAGMA_BODY_CONFIG</tt> (value: <span class="literal">0x08</span>)<br>
    149. 

  149.           The bodies of <span class="preprocessor">#pragma</span> statements (operator <span class="keyword">_Pragma</span>) will be preprocessed
    150. 

  150.           <p><tt>BOOST_WAVE_USE_STRICT_LEXER_CONFIG</tt> (value: <span class="literal">0x10</span>)<br>
    151. 

  151.             The C/C++ lexers recognize the 
    152. 

  152.       strict C99/C++ basic source character set. If it is not defined or defined 
    153. 

  153.     to zero, the lexers recognize the <span class="string">'$'</span> character as part of identifiers.</p>
    154. 

  154.       </blockquote>
    155. 

  155.       <p><br>
    156. 

  156.         </p></td>
    157. 

  157.     <td class="table_cells"><p>yes</p></td>
    158. 

  158.   </tr>
    159. 

  159. </table>
    160. 

  160. <br>
    161. 

  161. <table border="0">
    162. 

  162.   <tr> 
    163. 

  163.     <td width="10"></td>
    164. 

  164.     <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td>
    165. 

  165.     <td width="30"><a href="class_reference_inptpolcy.html"><img src="theme/l_arr.gif" width="20" height="19" border="0"></a></td>
    166. 

  166.     <td width="30"><a href="macro_expansion_process.html"><img src="theme/r_arr.gif" border="0"></a></td>
    167. 

  167.   </tr>
    168. 

  168. </table>
    169. 

  169. <hr size="1">
    170. 

  170. <p class="copyright">Copyright &copy; 2003-2011 Hartmut Kaiser<br>
    171. 

  171.   <br>
    172. 

  172.   <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>
    173. 

  173. <span class="updated"></span>
    174. 

  174. <p class="copyright"><span class="updated">Last updated: 
    175. 

  175.   <!-- #BeginDate format:fcAm1m -->Sunday, January 9, 2011  16:12<!-- #EndDate -->
    176. 

  176.   </span></p>
    177. 

  177. </body>
    178. 

  178. </html>
    179.