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  3. <title>The Protothreads Library 1.4: lc-addrlabels.h File Reference</title>
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  20. <h1>lc-addrlabels.h File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
  21. Implementation of local continuations based on the "Labels as values" feature of gcc.
  22. <p>
  23. <dl compact><dt><b>Author:</b></dt><dd>Adam Dunkels &lt;<a href="mailto:adam@sics.se">adam@sics.se</a>&gt;</dd></dl>
  24. 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>
  25. 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>
  26. <p>
  27. Definition in file <a class="el" href="a00018.html">lc-addrlabels.h</a>.
  28. <p>
  29. <p>
  30. <a href="a00018.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
  31. <tr><td></td></tr>
  32. <tr><td colspan="2"><br><h2>Defines</h2></td></tr>
  33. <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)" -->
  34. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#g2c1bb4fa6d7a6ff951a41c73fc721109">LC_INIT</a>(s)&nbsp;&nbsp;&nbsp;s = NULL</td></tr>
  35. <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)" -->
  36. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#g1ec8b8f4710dce1fa7fb87d3a31541ae">LC_RESUME</a>(s)</td></tr>
  37. <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6e1e879e172e2d8838e5f567dac8918c"></a><!-- doxytag: member="lc-addrlabels.h::LC_CONCAT2" ref="g6e1e879e172e2d8838e5f567dac8918c" args="(s1, s2)" -->
  38. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#g6e1e879e172e2d8838e5f567dac8918c">LC_CONCAT2</a>(s1, s2)&nbsp;&nbsp;&nbsp;s1##s2</td></tr>
  39. <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2b1f9b9fe8b6895b156f0af10538971c"></a><!-- doxytag: member="lc-addrlabels.h::LC_CONCAT" ref="g2b1f9b9fe8b6895b156f0af10538971c" args="(s1, s2)" -->
  40. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#g2b1f9b9fe8b6895b156f0af10538971c">LC_CONCAT</a>(s1, s2)&nbsp;&nbsp;&nbsp;LC_CONCAT2(s1, s2)</td></tr>
  41. <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)" -->
  42. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#gd8eec328a4868d767f0c00c8d1c6cfc1">LC_SET</a>(s)</td></tr>
  43. <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)" -->
  44. #define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#gca51ceb2f5d855dfde55bcedf8d3b92d">LC_END</a>(s)</td></tr>
  45. <tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
  46. <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="" -->
  47. typedef void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00017.html#g2bdc4b7b4038454a79f1b2a94a6d2a98">lc_t</a></td></tr>
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