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Languages.html 5.2KB

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  16. <title>Languages (Debugging with GDB)</title>
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  57. <a name="Languages"></a>
  58. <div class="header">
  59. <p>
  60. Next: <a href="Symbols.html#Symbols" accesskey="n" rel="next">Symbols</a>, Previous: <a href="Overlays.html#Overlays" accesskey="p" rel="prev">Overlays</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
  61. </div>
  62. <hr>
  63. <a name="Using-GDB-with-Different-Languages"></a>
  64. <h2 class="chapter">15 Using <small>GDB</small> with Different Languages</h2>
  65. <a name="index-languages"></a>
  66. <p>Although programming languages generally have common aspects, they are
  67. rarely expressed in the same manner. For instance, in ANSI C,
  68. dereferencing a pointer <code>p</code> is accomplished by <code>*p</code>, but in
  69. Modula-2, it is accomplished by <code>p^</code>. Values can also be
  70. represented (and displayed) differently. Hex numbers in C appear as
  71. &lsquo;<samp>0x1ae</samp>&rsquo;, while in Modula-2 they appear as &lsquo;<samp>1AEH</samp>&rsquo;.
  72. </p>
  73. <a name="index-working-language"></a>
  74. <p>Language-specific information is built into <small>GDB</small> for some languages,
  75. allowing you to express operations like the above in your program&rsquo;s
  76. native language, and allowing <small>GDB</small> to output values in a manner
  77. consistent with the syntax of your program&rsquo;s native language. The
  78. language you use to build expressions is called the <em>working
  79. language</em>.
  80. </p>
  81. <table class="menu" border="0" cellspacing="0">
  82. <tr><td align="left" valign="top">&bull; <a href="Setting.html#Setting" accesskey="1">Setting</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Switching between source languages
  83. </td></tr>
  84. <tr><td align="left" valign="top">&bull; <a href="Show.html#Show" accesskey="2">Show</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Displaying the language
  85. </td></tr>
  86. <tr><td align="left" valign="top">&bull; <a href="Checks.html#Checks" accesskey="3">Checks</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Type and range checks
  87. </td></tr>
  88. <tr><td align="left" valign="top">&bull; <a href="Supported-Languages.html#Supported-Languages" accesskey="4">Supported Languages</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Supported languages
  89. </td></tr>
  90. <tr><td align="left" valign="top">&bull; <a href="Unsupported-Languages.html#Unsupported-Languages" accesskey="5">Unsupported Languages</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Unsupported languages
  91. </td></tr>
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