update automatically

Author: cpprefjp-autoupdate

reference/format/basic_format_parse_context.html

@@ -188,12 +188,12 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2026-01-08T11:44:37">
-        2026年01月08日 11時44分37秒
+      <span itemprop="datePublished" content="2026-02-27T03:03:43">
+        2026年02月27日 03時03分43秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
-        <span itemprop="name">yoh</span>
+        <span itemprop="name">Akira Takahashi</span>
       </span>
       が更新
     </small></p>
@@ -269,6 +269,21 @@ <h2>メンバ関数</h2>
 <td>フォーマット引数の番号指定が有効か確かめる</td>
 <td>C++20</td>
 </tr>
+<tr>
+<td><code><a href="basic_format_parse_context/check_dynamic_spec.html">check_dynamic_spec</a></code></td>
+<td>動的な幅・精度の引数の型を検証する</td>
+<td>C++26</td>
+</tr>
+<tr>
+<td><code><a href="basic_format_parse_context/check_dynamic_spec_integral.html">check_dynamic_spec_integral</a></code></td>
+<td>動的な幅・精度の引数の型が整数型か検証する</td>
+<td>C++26</td>
+</tr>
+<tr>
+<td><code><a href="basic_format_parse_context/check_dynamic_spec_string.html">check_dynamic_spec_string</a></code></td>
+<td>動的な幅・精度の引数の型が文字列型か検証する</td>
+<td>C++26</td>
+</tr>
 </tbody>
 </table>
 <h2>メンバ型</h2>
@@ -316,10 +331,10 @@ <h2>実装例</h2>
     <span class="kt">size_t</span> <span class="n">num_args_</span><span class="p">;</span>
 
   <span class="k">public</span><span class="o">:</span>
-    <span class="k">explicit</span> <span class="k">constexpr</span> <span class="n">basic_format_parse_context</span><span class="p">(</span><span class="n"><a href="../string_view/basic_string_view.html">basic_string_view</a></span><span class="o">&lt;</span><span class="n">charT</span><span class="o">&gt;</span> <span class="n">fmt</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">num_args</span> <span class="o">=</span> <span class="mi">0</span><span class="p">)</span> <span class="k">noexcept</span>
+    <span class="k">explicit</span> <span class="k">constexpr</span> <span class="n">basic_format_parse_context</span><span class="p">(</span><span class="n"><a href="../string_view/basic_string_view.html">basic_string_view</a></span><span class="o">&lt;</span><span class="n">charT</span><span class="o">&gt;</span> <span class="n">fmt</span><span class="p">)</span> <span class="k">noexcept</span>
       <span class="o">:</span><span class="n">begin_</span><span class="p">(</span><span class="n">fmt</span><span class="p">.</span><span class="n">begin</span><span class="p">())</span>
       <span class="p">,</span><span class="n">end_</span><span class="p">(</span><span class="n">fmt</span><span class="p">.</span><span class="n">end</span><span class="p">())</span>
-      <span class="p">,</span><span class="n">num_args_</span><span class="p">(</span><span class="n">num_args</span><span class="p">)</span>
+      <span class="p">,</span><span class="n">num_args_</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
     <span class="p">{}</span>
 
     <span class="n">basic_format_parse_context</span><span class="p">(</span><span class="k">const</span> <span class="n">basic_format_parse_context</span><span class="o">&amp;</span><span class="p">)</span> <span class="o">=</span> <span class="k">delete</span><span class="p">;</span>
@@ -362,6 +377,19 @@ <h2>実装例</h2>
         <span class="k">throw</span> <span class="n"><a href="format_error.html">format_error</a></span><span class="p">(</span><span class="s">"mixing of automatic and manual argument indexing"</span><span class="p">);</span>
       <span class="p">}</span>
     <span class="p">}</span>
+
+    <span class="k">template</span><span class="o">&lt;</span><span class="n">class</span><span class="p">...</span> <span class="n">Ts</span><span class="o">&gt;</span>
+    <span class="k">constexpr</span> <span class="kt">void</span> <span class="n">check_dynamic_spec</span><span class="p">(</span><span class="kt">size_t</span> <span class="n">id</span><span class="p">)</span> <span class="k">noexcept</span><span class="p">;</span>
+
+    <span class="k">constexpr</span> <span class="kt">void</span> <span class="nf">check_dynamic_spec_integral</span><span class="p">(</span><span class="kt">size_t</span> <span class="n">id</span><span class="p">)</span> <span class="k">noexcept</span>
+    <span class="p">{</span>
+      <span class="n">check_dynamic_spec</span><span class="o">&lt;</span><span class="kt">int</span><span class="p">,</span> <span class="kt">unsigned</span> <span class="kt">int</span><span class="p">,</span> <span class="kt">long</span> <span class="kt">long</span> <span class="kt">int</span><span class="p">,</span> <span class="kt">unsigned</span> <span class="kt">long</span> <span class="kt">long</span> <span class="kt">int</span><span class="o">&gt;</span><span class="p">(</span><span class="n">id</span><span class="p">);</span>
+    <span class="p">}</span>
+
+    <span class="k">constexpr</span> <span class="kt">void</span> <span class="nf">check_dynamic_spec_string</span><span class="p">(</span><span class="kt">size_t</span> <span class="n">id</span><span class="p">)</span> <span class="k">noexcept</span>
+    <span class="p">{</span>
+      <span class="n">check_dynamic_spec</span><span class="o">&lt;</span><span class="k">const</span> <span class="n">char_type</span><span class="o">*</span><span class="p">,</span> <span class="n"><a href="../string_view/basic_string_view.html">basic_string_view</a></span><span class="o">&lt;</span><span class="n">char_type</span><span class="o">&gt;&gt;</span><span class="p">(</span><span class="n">id</span><span class="p">);</span>
+    <span class="p">}</span>
   <span class="p">};</span>
 <span class="p">}</span>
 </code></pre></div>
@@ -381,6 +409,7 @@ <h3>処理系</h3>
 <h2>参照</h2>
 <ul>
 <li><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0645r10.html" target="_blank">P0645R10 Text Formatting</a></li>
+<li><a href="https://open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2757r3.html" target="_blank">P2757R3 Type-checking format args</a></li>
 </ul></div>
 
       </div>