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<a href="smart__capability__1x.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// vim:set ft=cpp: -*- Mode: C++ -*-</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * (c) 2017 Alexander Warg <alexander.warg@kernkonzept.com></span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <<a class="code" href="capability.html">l4/sys/capability</a>></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4.html">L4</a> { <span class="keyword">namespace </span>Detail {</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword">template</span>< <span class="keyword">typename</span> T, <span class="keyword">typename</span> IMPL ></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">class </span>Smart_cap_base : <span class="keyword">public</span> Cap_base, <span class="keyword">protected</span> IMPL</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span>{</div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="keyword">protected</span>:</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">template</span><<span class="keyword">typename</span> X></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">static</span> IMPL &impl(Smart_cap_base<X, IMPL> &o) { <span class="keywordflow">return</span> o; }</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">template</span><<span class="keyword">typename</span> X></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">static</span> IMPL <span class="keyword">const</span> &impl(Smart_cap_base<X, IMPL> <span class="keyword">const</span> &o) { <span class="keywordflow">return</span> o; }</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">template</span><<span class="keyword">typename</span> X, <span class="keyword">typename</span> I></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">friend</span> class ::L4::Detail::Smart_cap_base;</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> Smart_cap_base(Smart_cap_base <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> Smart_cap_base &operator = (Smart_cap_base <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> Smart_cap_base() noexcept : <a class="code hl_function" href="classL4_1_1Cap__base.html#ad51e36743fd47c161ffb23f4e8c4f706">Cap_base</a>(<a class="code hl_enumvalue" href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">Invalid</a>) {}</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">explicit</span> Smart_cap_base(<a class="code hl_enumeration" href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7">Cap_base::Cap_type</a> t) noexcept</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> : <a class="code hl_function" href="classL4_1_1Cap__base.html#aea13cf4ec224211dc780a56d6ffa1c53">Cap_base</a>(t)</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> {}</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">explicit</span> <span class="keyword">constexpr</span> Smart_cap_base(Cap<O> c) noexcept</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> : <a class="code hl_function" href="classL4_1_1Cap__base.html#aea13cf4ec224211dc780a56d6ffa1c53">Cap_base</a>(c.cap())</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {}</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">explicit</span> <span class="keyword">constexpr</span> Smart_cap_base(Cap<O> c, IMPL <span class="keyword">const</span> &impl) noexcept</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> : <a class="code hl_function" href="classL4_1_1Cap__base.html#aea13cf4ec224211dc780a56d6ffa1c53">Cap_base</a>(c.cap()), IMPL(impl)</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> {}</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> Cap<T> release() noexcept</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> {</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_typedef" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> c = this-><a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>();</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> IMPL::invalidate(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</span> Cap<T>(c);</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordtype">void</span> reset()</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> { IMPL::free(*<span class="keyword">this</span>); }</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> Cap<T> operator -> () const noexcept { <span class="keywordflow">return</span> Cap<T>(this-><a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>()); }</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> Cap<T> get() const noexcept { <span class="keywordflow">return</span> Cap<T>(this-><a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>()); }</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> ~Smart_cap_base() noexcept { IMPL::free(*<span class="keyword">this</span>); }</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>};</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword">template</span>< <span class="keyword">typename</span> T, <span class="keyword">typename</span> IMPL ></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="keyword">class </span>Unique_cap_impl final : <span class="keyword">public</span> Smart_cap_base<T, IMPL></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>{</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">typedef</span> Smart_cap_base<T, IMPL> Base;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">using </span>Base::Base;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> Unique_cap_impl() noexcept = default;</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> Unique_cap_impl(Unique_cap_impl &&o) noexcept</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> : Base(o.release(), Base::impl(o))</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> {}</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> Unique_cap_impl(Unique_cap_impl<O, IMPL> &&o) noexcept</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> : Base(o.release(), Base::impl(o))</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> { Cap<T>::template check_convertible_from<O>(); }</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> Unique_cap_impl &operator = (Unique_cap_impl &&o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> {</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">if</span> (&o == <span class="keyword">this</span>)</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = o.release().cap();</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> Unique_cap_impl &operator = (Unique_cap_impl<O, IMPL> &&o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> Cap<T>::template check_convertible_from<O>();</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = o.release().cap();</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> }</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span>};</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> </div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> IMPL></div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span><span class="keyword">class </span>Shared_cap_impl final : <span class="keyword">public</span> Smart_cap_base<T, IMPL></div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span>{</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">typedef</span> Smart_cap_base<T, IMPL> Base;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">using </span>Base::Base;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> Shared_cap_impl() noexcept = default;</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> Shared_cap_impl(Shared_cap_impl &&o) noexcept</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> : Base(o.release(), Base::impl(o))</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> {}</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> Shared_cap_impl(Shared_cap_impl<O, IMPL> &&o) noexcept</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> : Base(o.release(), Base::impl(o))</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> { Cap<T>::template check_convertible_from<O>(); }</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> Shared_cap_impl &operator = (Shared_cap_impl &&o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> {</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">if</span> (&o == <span class="keyword">this</span>)</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = o.release().cap();</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> }</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> Shared_cap_impl &operator = (Shared_cap_impl<O, IMPL> &&o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> {</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> Cap<T>::template check_convertible_from<O>();</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = o.release().cap();</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> }</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> Shared_cap_impl(Shared_cap_impl <span class="keyword">const</span> &o) noexcept</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> : Base()</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> {</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = IMPL::copy(o).cap();</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> Shared_cap_impl(Shared_cap_impl<O, IMPL> <span class="keyword">const</span> &o) noexcept</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> : Base()</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> {</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> Cap<T>::template check_convertible_from<O>();</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> this->IMPL::operator = (Base::impl(o));</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = IMPL::copy(o).cap();</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> Shared_cap_impl &operator = (Shared_cap_impl <span class="keyword">const</span> &o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> {</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">if</span> (&o == <span class="keyword">this</span>)</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> this->IMPL::operator = (<span class="keyword">static_cast<</span>IMPL <span class="keyword">const </span>&<span class="keyword">></span>(o));</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = this->IMPL::copy(o).cap();</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> }</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">template</span><<span class="keyword">typename</span> O></div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> Shared_cap_impl &operator = (Shared_cap_impl<O, IMPL> <span class="keyword">const</span> &o) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> {</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> Cap<T>::template check_convertible_from<O>();</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> IMPL::free(*<span class="keyword">this</span>);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> this->IMPL::operator = (<span class="keyword">static_cast<</span>IMPL <span class="keyword">const </span>&<span class="keyword">></span>(o));</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> this-><a class="code hl_variable" href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">_c</a> = this->IMPL::copy(o).cap();</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span>};</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span>}} <span class="comment">// L4::Detail</span></div>
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<div class="ttc" id="acapability_html"><div class="ttname"><a href="capability.html">capability</a></div><div class="ttdoc">L4::Cap related definitions.</div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_a78113f1ec15a18c099e8f010667c0437"><div class="ttname"><a href="classL4_1_1Cap__base.html#a78113f1ec15a18c099e8f010667c0437">L4::Cap_base::_c</a></div><div class="ttdeci">l4_cap_idx_t _c</div><div class="ttdoc">The C representation of a capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00203">capability.h:203</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_a90ff089ca2442b128c2b2b0e1c22c6d7"><div class="ttname"><a href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">L4::Cap_base::cap</a></div><div class="ttdeci">l4_cap_idx_t cap() const noexcept</div><div class="ttdoc">Return capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00049">capability.h:49</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ac74dbedb04347341ba30ece923c12fe7"><div class="ttname"><a href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7">L4::Cap_base::Cap_type</a></div><div class="ttdeci">Cap_type</div><div class="ttdoc">Invalid capability type.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00040">capability.h:41</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a"><div class="ttname"><a href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">L4::Cap_base::Invalid</a></div><div class="ttdeci">@ Invalid</div><div class="ttdoc">Invalid capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00042">capability.h:42</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ad51e36743fd47c161ffb23f4e8c4f706"><div class="ttname"><a href="classL4_1_1Cap__base.html#ad51e36743fd47c161ffb23f4e8c4f706">L4::Cap_base::Cap_base</a></div><div class="ttdeci">Cap_base(l4_cap_idx_t c) noexcept</div><div class="ttdoc">Generate a capability from its C representation.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00149">capability.h:149</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_aea13cf4ec224211dc780a56d6ffa1c53"><div class="ttname"><a href="classL4_1_1Cap__base.html#aea13cf4ec224211dc780a56d6ffa1c53">L4::Cap_base::Cap_base</a></div><div class="ttdeci">Cap_base() noexcept</div><div class="ttdoc">Create an uninitialized instance.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00165">capability.h:165</a></div></div>
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<div class="ttc" id="agroup__l4__cap__api_html_ga1445e923ce73029130d569d6e69a4dd8"><div class="ttname"><a href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></div><div class="ttdeci">unsigned long l4_cap_idx_t</div><div class="ttdoc">Capability selector type.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2types_8h_source.html#l00336">types.h:336</a></div></div>
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<div class="ttc" id="anamespaceL4_html"><div class="ttname"><a href="namespaceL4.html">L4</a></div><div class="ttdoc">L4 low-level kernel interface.</div><div class="ttdef"><b>Definition</b> <a href="l4sys-l4f-groups_8dox_source.html#l00050">l4sys-l4f-groups.dox:50</a></div></div>
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<li class="navelem"><b>l4</b></li><li class="navelem"><b>sys</b></li><li class="navelem"><b>cxx</b></li><li class="navelem"><a href="smart__capability__1x.html">smart_capability_1x</a></li>
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