/tags/nttp/ Recent content in Nttp on DvdBr3o Hugo -- gohugo.io zh-cn Thu, 22 Jan 2026 03:08:16 +0800 /post/%E5%BC%80%E5%8F%91/cpp/cpp20-nttp-udl/ Thu, 22 Jan 2026 03:06:12 +0800 /post/%E5%BC%80%E5%8F%91/cpp/cpp20-nttp-udl/ <p>从 C++20 开始，用户定义字面量运算符 (user-defined literals, UDL) 允许接受一个 NTTP 参数，从而完成从字面量构建编译期对象！</p> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-cpp" data-lang="cpp"><span class="line"><span class="cl"><span class="k">template</span><span class="o">&lt;</span><span class="n">FixedString</span> <span class="n">fs</span><span class="o">&gt;</span> </span></span><span class="line"><span class="cl"><span class="k">constexpr</span> <span class="k">auto</span> <span class="k">operator</span><span class="s">&#34;&#34;</span><span class="n">_fs</span><span class="p">()</span> <span class="p">{</span> </span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="n">fs</span><span class="p">;</span> </span></span><span class="line"><span class="cl"><span class="p">}</span> </span></span></code></pre></td></tr></table> </div> </div>