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diff --git a/2023/10/13/肝功能检查化验单/index.html b/2023/10/13/肝功能检查化验单/index.html index def0abaf..c7f40c03 100644 --- a/2023/10/13/肝功能检查化验单/index.html +++ b/2023/10/13/肝功能检查化验单/index.html @@ -323,6 +323,11 @@ mjx-container[display="true"] + br { <nav class="post-nav"> <div class="prev-item"> + <div class="icon arrow-left"></div> + <div class="post-link"> + <a href="/2023/10/21/OCaml-Core-Int-pow-%E7%9A%84%E5%AE%9E%E7%8E%B0/">Prev</a> + </div> + </div> <div class="next-item"> diff --git a/2023/10/21/OCaml-Core-Int-pow-的实现/index.html b/2023/10/21/OCaml-Core-Int-pow-的实现/index.html new file mode 100644 index 00000000..808ab9ca --- /dev/null +++ b/2023/10/21/OCaml-Core-Int-pow-的实现/index.html @@ -0,0 +1,237 @@ +<!DOCTYPE html> +<html lang="en"> + <head> + <meta charset="UTF-8"> +<meta name="viewport" + content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> +<meta http-equiv="X-UA-Compatible" content="ie=edge"> + + <meta name="author" content="韩暮秋"> + + + <meta 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href="/tags/OCaml/"> + OCaml + </a> + </span> + + + </div> + <div class="post-title"> + + + OCaml Core.Int.pow 的实现 + + + </div> + <span class="post-date"> + Oct 21, 2023 + </span> + </div> + <div class="post-img"> + + <div class="h-line-primary"></div> + + </div> +</div> + <div class="post-content"> + <p>Core内部直接引用的Base的实现， Base的实现在 <a target="_blank" rel="noopener" href="https://github.com/janestreet/base/blob/494a0876168d24cda695cbb9a3d86ad8d1eb97d8/src/int_math.ml#L11-L18">src/int_math.ml</a> 中：</p> +<figure class="highlight ocaml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">let</span> int_pow base exponent =</span><br><span class="line"> <span class="keyword">if</span> exponent < <span class="number">0</span> <span class="keyword">then</span> negative_exponent <span class="literal">()</span>;</span><br><span class="line"> <span class="keyword">if</span> abs base > <span class="number">1</span></span><br><span class="line"> && (exponent > <span class="number">63</span></span><br><span class="line"> || abs base > <span class="type">Pow_overflow_bounds</span>.int_positive_overflow_bounds.(exponent))</span><br><span class="line"> <span class="keyword">then</span> overflow <span class="literal">()</span>;</span><br><span class="line"> int_math_int_pow base exponent</span><br><span class="line">;;</span><br></pre></td></tr></table></figure> + +<p>其中 <code>int_math_int_pow()</code> 由 C 实现:</p> +<figure class="highlight ocaml"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">external</span> int_math_int_pow : <span class="built_in">int</span> -> <span class="built_in">int</span> -> <span class="built_in">int</span> = <span class="string">"Base_int_math_int_pow_stub"</span> [@@noalloc]</span><br></pre></td></tr></table></figure> + +<p>其实现在 <a target="_blank" rel="noopener" href="https://github.com/janestreet/base/blob/494a0876168d24cda695cbb9a3d86ad8d1eb97d8/src/int_math_stubs.c#L56-L92">src/int_math_stubs.c</a> 中:</p> +<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">static</span> <span class="type">int64_t</span> <span class="title function_">int_pow</span><span class="params">(<span class="type">int64_t</span> base, <span class="type">int64_t</span> exponent)</span> {</span><br><span class="line"> <span class="type">int64_t</span> ret = <span class="number">1</span>;</span><br><span class="line"> <span class="type">int64_t</span> mul[<span class="number">4</span>];</span><br><span class="line"> mul[<span class="number">0</span>] = <span class="number">1</span>;</span><br><span class="line"> mul[<span class="number">1</span>] = base;</span><br><span class="line"> mul[<span class="number">3</span>] = <span class="number">1</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">while</span> (exponent != <span class="number">0</span>) {</span><br><span class="line"> mul[<span class="number">1</span>] *= mul[<span class="number">3</span>];</span><br><span class="line"> mul[<span class="number">2</span>] = mul[<span class="number">1</span>] * mul[<span class="number">1</span>];</span><br><span class="line"> mul[<span class="number">3</span>] = mul[<span class="number">2</span>] * mul[<span class="number">1</span>];</span><br><span class="line"> ret *= mul[exponent & <span class="number">3</span>];</span><br><span class="line"> exponent >>= <span class="number">2</span>;</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> ret;</span><br><span class="line">}</span><br></pre></td></tr></table></figure> + + +</div> + +<script> + window.onload = detectors(); +</script> + <div class="post-footer"> + <div class="h-line-primary"></div> + <nav class="post-nav"> + <div class="prev-item"> + + </div> + <div class="next-item"> + + <div class="icon arrow-right"></div> + <div class="post-link"> + <a 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href="/2023/10/13/%E8%82%9D%E5%8A%9F%E8%83%BD%E6%A3%80%E6%9F%A5%E5%8C%96%E9%AA%8C%E5%8D%95/"> 肝功能检查化验单阅读指南 @@ -293,24 +311,6 @@ </div> - - - - - - <div class="post-list-item"> - <div class="post-title"> - <a href="/2023/08/15/poll-error-attribute-in-OCaml/"> - - 使用 [@poll error] 实现线程安全的数据结构 - - </a> - </div> - - <span class="post-date">Aug 15, 2023</span> - </div> - - <div id="paginator"> <div class=paginator> diff --git a/archives/page/2/index.html b/archives/page/2/index.html index 588af05b..1944cc7b 100644 --- a/archives/page/2/index.html +++ b/archives/page/2/index.html @@ -138,6 +138,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2023/08/15/poll-error-attribute-in-OCaml/"> + + 使用 [@poll error] 实现线程安全的数据结构 + + </a> + </div> + + <span class="post-date">Aug 15, 2023</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2023/08/15/Typed-Design-Patterns-for-the-Functional-Era/"> Typed Design Patterns for the Functional Era @@ -293,24 +311,6 @@ </div> - - - - - - <div class="post-list-item"> - <div class="post-title"> - <a href="/2023/06/17/%E5%8F%91%E7%83%AD%E5%8F%8A%E8%B6%85%E9%AB%98%E7%83%AD%E5%8D%B1%E8%B1%A1/"> - - 发热及超高热危象 - - </a> - </div> - - <span class="post-date">Jun 17, 2023</span> - </div> - - <div id="paginator"> <div class=paginator> diff --git a/archives/page/3/index.html b/archives/page/3/index.html index 25cb9299..14f4f72d 100644 --- a/archives/page/3/index.html +++ b/archives/page/3/index.html @@ -138,6 +138,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2023/06/17/%E5%8F%91%E7%83%AD%E5%8F%8A%E8%B6%85%E9%AB%98%E7%83%AD%E5%8D%B1%E8%B1%A1/"> + + 发热及超高热危象 + + </a> + </div> + + <span class="post-date">Jun 17, 2023</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2023/06/10/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E4%B8%89%E5%B9%B4%E5%85%AD%E6%9C%88%E5%8D%81%E6%97%A5/"> 二零二三年六月十日 @@ -293,24 +311,6 @@ </div> - - - - - - <div class="post-list-item"> - <div class="post-title"> - <a href="/2023/03/01/%E7%BA%AF%E7%89%9B%E5%A5%B6%E5%8F%AF%E4%BB%A5%E5%8A%A0%E7%82%B9%E5%95%A5/"> - - 纯牛奶可以加点啥 - - </a> - </div> - - <span class="post-date">Mar 1, 2023</span> - </div> - - <div id="paginator"> <div class=paginator> diff --git a/archives/page/4/index.html b/archives/page/4/index.html index a9112320..5a1e78a1 100644 --- a/archives/page/4/index.html +++ b/archives/page/4/index.html @@ -138,6 +138,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2023/03/01/%E7%BA%AF%E7%89%9B%E5%A5%B6%E5%8F%AF%E4%BB%A5%E5%8A%A0%E7%82%B9%E5%95%A5/"> + + 纯牛奶可以加点啥 + + </a> + </div> + + <span class="post-date">Mar 1, 2023</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2023/02/26/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E4%B8%89%E5%B9%B4%E4%BA%8C%E6%9C%88%E4%BA%8C%E5%8D%81%E5%85%AD%E6%97%A5/"> 二零二三年二月二十六日 @@ -295,24 +313,6 @@ </div> - - - - - - <div class="post-list-item"> - <div class="post-title"> - <a href="/2022/10/01/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E4%BA%8C%E5%B9%B4%E5%8D%81%E6%9C%88%E4%B8%80%E6%97%A5/"> - - 二零二二年十月一日 - - </a> - </div> - - <span class="post-date">Oct 1, 2022</span> - </div> - - <div id="paginator"> <div class=paginator> diff --git a/archives/page/5/index.html b/archives/page/5/index.html index 7b5ee999..c40bf443 100644 --- a/archives/page/5/index.html +++ b/archives/page/5/index.html @@ -138,6 +138,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2022/10/01/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E4%BA%8C%E5%B9%B4%E5%8D%81%E6%9C%88%E4%B8%80%E6%97%A5/"> + + 二零二二年十月一日 + + </a> + </div> + + <span class="post-date">Oct 1, 2022</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2022/09/22/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E4%BA%8C%E5%B9%B4%E4%B9%9D%E6%9C%88%E4%BA%8C%E5%8D%81%E4%BA%8C%E6%97%A5/"> 二零二二年九月二十二日 @@ -297,24 +315,6 @@ </div> - - - - - - <div class="post-list-item"> - <div class="post-title"> - <a href="/2020/12/09/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E9%9B%B6%E5%B9%B4%E5%8D%81%E4%BA%8C%E6%9C%88%E4%B9%9D%E6%97%A5/"> - - 二零二零年十二月九日 - - </a> - </div> - - <span class="post-date">Dec 9, 2020</span> - </div> - - <div id="paginator"> <div class=paginator> diff --git a/archives/page/6/index.html b/archives/page/6/index.html index b8aa6fa3..9d3658dd 100644 --- a/archives/page/6/index.html +++ b/archives/page/6/index.html @@ -138,6 +138,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2020/12/09/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E9%9B%B6%E5%B9%B4%E5%8D%81%E4%BA%8C%E6%9C%88%E4%B9%9D%E6%97%A5/"> + + 二零二零年十二月九日 + + </a> + </div> + + <span class="post-date">Dec 9, 2020</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2020/12/08/%E4%BA%8C%E9%9B%B6%E4%BA%8C%E9%9B%B6%E5%B9%B4%E5%8D%81%E4%BA%8C%E6%9C%88%E5%85%AB%E6%97%A5/"> 二零二零年十二月八日 diff --git a/tags/OCaml/index.html b/tags/OCaml/index.html index 3a17eafb..c20028ba 100644 --- a/tags/OCaml/index.html +++ b/tags/OCaml/index.html @@ -145,6 +145,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2023/10/21/OCaml-Core-Int-pow-%E7%9A%84%E5%AE%9E%E7%8E%B0/"> + + OCaml Core.Int.pow 的实现 + + </a> + </div> + + <span class="post-date">Oct 21, 2023</span> + </div> + + + + + + + + <div class="post-list-item"> + <div class="post-title"> <a href="/2023/08/15/tick-thread%E5%9C%A8Multicore-OCaml%E4%B8%AD%E7%9A%84%E4%BD%9C%E7%94%A8/"> tick thread在Multicore OCaml中的作用 diff --git a/tags/Technique/index.html b/tags/Technique/index.html index 6aed983b..e823267a 100644 --- a/tags/Technique/index.html +++ b/tags/Technique/index.html @@ -145,6 +145,24 @@ <div class="post-list-item"> <div class="post-title"> + <a href="/2023/10/21/OCaml-Core-Int-pow-%E7%9A%84%E5%AE%9E%E7%8E%B0/"> + + OCaml Core.Int.pow 的实现 + + </a> + </div> + + <span class="post-date">Oct 21, 2023</span> + </div> + + + + + + + + <div class="post-list-item"> + <div 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