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2024年06月11日 13時45分38秒
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<div class="identifier-type">function</div><div class="header"><stacktrace></div><h1 itemprop="name"><span class="namespace" title="namespace std">std::</span><span class="class" title="class basic_stacktrace">basic_stacktrace::</span><span class="token">to_string</span><span class="cpp cpp23" title="C++23で追加">(C++23)</span></h1>
<div itemprop="articleBody"><p><div class="codehilite"><pre><span></span><code><span class="k">namespace</span><span class="w"> </span><span class="nn">std</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="k">template</span><span class="w"> </span><span class="o"><</span><span class="k">class</span><span class="w"> </span><span class="nc">Allocator</span><span class="o">></span>
<span class="w"> </span><span class="n"><a href="../../string/basic_string.html">string</a></span><span class="w"> </span><span class="n">to_string</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="n">basic_stacktrace</span><span class="o"><</span><span class="n">Allocator</span><span class="o">>&</span><span class="w"> </span><span class="n">st</span><span class="p">);</span>
<span class="p">}</span>
</code></pre></div>
</p>
<h2>概要</h2>
<p>文字列化する。</p>
<h2><a class="cpprefjp-defined-word" data-desc="関数呼び出し式の評価結果となるオブジェクト・値">戻り値</a></h2>
<p><code>st</code>のスタックトレース情報を説明する文字列を返す。</p>
<h2>備考</h2>
<ul>
<li><a class="cpprefjp-defined-word" data-desc="関数呼び出し式の評価結果となるオブジェクト・値">戻り値</a>となる文字列の行数は、<code><a href="size.html">size()</a></code>と等値であるという保証はない</li>
</ul>
<h2>例</h2>
<p><div class="yata" id="c4e023cc5c8306b6031d38e953e45c05c478ba7d"><div class="codehilite"><pre><span></span><code><span class="cp">#include <a href="../../iostream.html"><iostream></a></span>
<span class="cp">#include <a href="../../stacktrace.html"><stacktrace></a></span>
<span class="kt">void</span><span class="w"> </span><span class="nf">g</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n"><a href="../../string/basic_string.html">std::string</a></span><span class="w"> </span><span class="n">trace</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n"><span style="color:#ff0000">std::to_string</span></span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">stacktrace</span><span class="o">::</span><span class="n"><a href="current.html">current()</a></span><span class="p">);</span>
<span class="w"> </span><span class="n"><a href="../../iostream/cout.html">std::cout</a></span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="n">trace</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="n"><a href="../../ostream/endl.html">std::endl</a></span><span class="p">;</span>
<span class="p">}</span>
<span class="kt">void</span><span class="w"> </span><span class="nf">f</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">g</span><span class="p">();</span>
<span class="p">}</span>
<span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">f</span><span class="p">();</span>
<span class="p">}</span>
</code></pre></div>
</div></p>
<h3>出力例 (GCC)</h3>
<p><pre><code> 0# g() at /app/example.cpp:5
1# f() at /app/example.cpp:10
2# main at /app/example.cpp:14
3# at :0
4# at :0
5# _start at :0
6#
</code></pre></p>
<h2>バージョン</h2>
<h3>言語</h3>
<ul>
<li>C++23</li>
</ul>
<h3>処理系</h3>
<ul>
<li><a href="../../../implementation.html#clang">Clang</a>: ??</li>
<li><a href="../../../implementation.html#gcc">GCC</a>: 12 <span aria-label="検証済" role="img" title="検証済">✅</span></li>
<li><a href="../../../implementation.html#visual_cpp">Visual C++</a>: ??</li>
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