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58 lines
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<title>uIP 1.0: uip/lc-addrlabels.h File Reference</title>
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<h1>uip/lc-addrlabels.h File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
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Implementation of local continuations based on the "Labels as values" feature of gcc.
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<p>
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<dl compact><dt><b>Author:</b></dt><dd>Adam Dunkels <<a href="mailto:adam@sics.se">adam@sics.se</a>></dd></dl>
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This implementation of local continuations is based on a special feature of the GCC C compiler called "labels as values". This feature allows assigning pointers with the address of the code corresponding to a particular C label.<p>
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For more information, see the GCC documentation: <a href="http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html">http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html</a><p>
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Thanks to dividuum for finding the nice local scope label implementation.
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<p>
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Definition in file <a class="el" href="a00189.html">lc-addrlabels.h</a>.
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<a href="a00189.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td></td></tr>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2c1bb4fa6d7a6ff951a41c73fc721109"></a><!-- doxytag: member="lc-addrlabels.h::LC_INIT" ref="g2c1bb4fa6d7a6ff951a41c73fc721109" args="(s)" -->
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00155.html#g2c1bb4fa6d7a6ff951a41c73fc721109">LC_INIT</a>(s) s = NULL</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1ec8b8f4710dce1fa7fb87d3a31541ae"></a><!-- doxytag: member="lc-addrlabels.h::LC_RESUME" ref="g1ec8b8f4710dce1fa7fb87d3a31541ae" args="(s)" -->
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00155.html#g1ec8b8f4710dce1fa7fb87d3a31541ae">LC_RESUME</a>(s)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd8eec328a4868d767f0c00c8d1c6cfc1"></a><!-- doxytag: member="lc-addrlabels.h::LC_SET" ref="gd8eec328a4868d767f0c00c8d1c6cfc1" args="(s)" -->
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00155.html#gd8eec328a4868d767f0c00c8d1c6cfc1">LC_SET</a>(s) do { ({ __label__ resume; resume: (s) = &&resume; }); }while(0)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gca51ceb2f5d855dfde55bcedf8d3b92d"></a><!-- doxytag: member="lc-addrlabels.h::LC_END" ref="gca51ceb2f5d855dfde55bcedf8d3b92d" args="(s)" -->
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00155.html#gca51ceb2f5d855dfde55bcedf8d3b92d">LC_END</a>(s)</td></tr>
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<tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2bdc4b7b4038454a79f1b2a94a6d2a98"></a><!-- doxytag: member="lc-addrlabels.h::lc_t" ref="g2bdc4b7b4038454a79f1b2a94a6d2a98" args="" -->
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typedef void * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00155.html#g2bdc4b7b4038454a79f1b2a94a6d2a98">lc_t</a></td></tr>
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</table>
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<hr size="1"><address style="align: right;"><small>Generated on Mon Jun 12 10:23:01 2006 for uIP 1.0 by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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