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| <div id="projectname">lwIP<span id="projectnumber"> 2.1.3</span> |
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| <div id="projectbrief">Lightweight IP stack</div> |
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| <div class="textblock"><code>#include "<a class="el" href="arch_8h.html">lwip/arch.h</a>"</code><br /> |
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| <div class="textblock"><p>IP protocol definitions </p> |
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| <h2 class="memtitle"><span class="permalink"><a href="#afc29766fb0707c63b64568c5fa44a374">◆ </a></span>IP_HDR_GET_VERSION</h2> |
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| <td class="memname">#define IP_HDR_GET_VERSION</td> |
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| <td class="paramtype"></td> <td class="paramname"><span class="paramname"><em>ptr</em></span></td><td>)</td> |
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| <b>Value:</b><div class="fragment"><div class="line">((*(u8_t*)(ptr)) >> 4)</div> |
| </div><!-- fragment --><p>This operates on a void* by loading the first byte </p> |
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