cpprefjp - C++日本語リファレンス

rcu_obj_base -- rcu : 例にのインクルードを追加

2026-09-16T19:41:36+09:00

diff --git a/reference/rcu/rcu_obj_base.md b/reference/rcu/rcu_obj_base.md
index 255f9247c..06728bf82 100644
--- a/reference/rcu/rcu_obj_base.md
+++ b/reference/rcu/rcu_obj_base.md
@@ -38,6 +38,7 @@ RCU機構の保護対象とする型の基底クラス。
 ```cpp example
 #include <atomic>
 #include <mutex>
+#include <print>
 #include <thread>
 #include <rcu>

rcu_retire -- rcu : 例にのインクルードを追加

2026-09-16T19:41:36+09:00

diff --git a/reference/rcu/rcu_retire.md b/reference/rcu/rcu_retire.md
index a73519b7b..051e53137 100644
--- a/reference/rcu/rcu_retire.md
+++ b/reference/rcu/rcu_retire.md
@@ -49,6 +49,7 @@ RCU機構により保護されるオブジェクト回収をスケジュール
 ```cpp example
 #include <atomic>
 #include <mutex>
+#include <print>
 #include <thread>
 #include <rcu>

rcu_synchronize -- rcu : 例にのインクルードを追加

2026-09-16T19:41:36+09:00

diff --git a/reference/rcu/rcu_synchronize.md b/reference/rcu/rcu_synchronize.md
index 1ab2c2356..2033b4532 100644
--- a/reference/rcu/rcu_synchronize.md
+++ b/reference/rcu/rcu_synchronize.md
@@ -40,6 +40,7 @@ RCUドメインのアンロック完了を待機する。
 ```cpp example
 #include <atomic>
 #include <mutex>
+#include <print>
 #include <thread>
 #include <rcu>

hermitian_matrix_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/hermitian_matrix_product.md b/reference/linalg/hermitian_matrix_product.md
index b9361b880..80861ab1c 100644
--- a/reference/linalg/hermitian_matrix_product.md
+++ b/reference/linalg/hermitian_matrix_product.md
@@ -168,6 +168,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|B.extent(1)|)$
 ```cpp example
 #include <array>
 #include <complex>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

hermitian_matrix_vector_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/hermitian_matrix_vector_product.md b/reference/linalg/hermitian_matrix_vector_product.md
index ba60562c4..0b006299b 100644
--- a/reference/linalg/hermitian_matrix_vector_product.md
+++ b/reference/linalg/hermitian_matrix_vector_product.md
@@ -115,6 +115,7 @@ $O(\verb|A.extent(0)|\times \verb|x.extent(0)|)$
 ```cpp example
 #include <array>
 #include <complex>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

matrix_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/matrix_product.md b/reference/linalg/matrix_product.md
index 24ea96785..b8a6a33f8 100644
--- a/reference/linalg/matrix_product.md
+++ b/reference/linalg/matrix_product.md
@@ -89,6 +89,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|B.extent(1)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

matrix_vector_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/matrix_vector_product.md b/reference/linalg/matrix_vector_product.md
index 921961130..46b22c950 100644
--- a/reference/linalg/matrix_vector_product.md
+++ b/reference/linalg/matrix_vector_product.md
@@ -90,6 +90,7 @@ $O(\verb|A.extent(0)|\times \verb|x.extent(0)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

symmetric_matrix_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/symmetric_matrix_product.md b/reference/linalg/symmetric_matrix_product.md
index 6a2529a7e..1dc1c8363 100644
--- a/reference/linalg/symmetric_matrix_product.md
+++ b/reference/linalg/symmetric_matrix_product.md
@@ -166,6 +166,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|B.extent(1)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

symmetric_matrix_vector_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/symmetric_matrix_vector_product.md b/reference/linalg/symmetric_matrix_vector_product.md
index 8e731d370..6466d4d9e 100644
--- a/reference/linalg/symmetric_matrix_vector_product.md
+++ b/reference/linalg/symmetric_matrix_vector_product.md
@@ -108,6 +108,7 @@ $O(\verb|A.extent(0)|\times \verb|x.extent(0)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

triangular_matrix_left_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_left_product.md b/reference/linalg/triangular_matrix_left_product.md
index 29106ed9f..cb6e0c0a9 100644
--- a/reference/linalg/triangular_matrix_left_product.md
+++ b/reference/linalg/triangular_matrix_left_product.md
@@ -72,6 +72,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|C.extent(0)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

triangular_matrix_matrix_left_solve -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_matrix_left_solve.md b/reference/linalg/triangular_matrix_matrix_left_solve.md
index dc3da045a..3fae2af33 100644
--- a/reference/linalg/triangular_matrix_matrix_left_solve.md
+++ b/reference/linalg/triangular_matrix_matrix_left_solve.md
@@ -179,6 +179,7 @@ namespace std::linalg {
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <functional>
 #include <iostream>
 #include <linalg>

triangular_matrix_matrix_right_solve -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_matrix_right_solve.md b/reference/linalg/triangular_matrix_matrix_right_solve.md
index 5a5ba3e5d..fd2b2c385 100644
--- a/reference/linalg/triangular_matrix_matrix_right_solve.md
+++ b/reference/linalg/triangular_matrix_matrix_right_solve.md
@@ -179,6 +179,7 @@ namespace std::linalg {
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <functional>
 #include <iostream>
 #include <linalg>

triangular_matrix_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_product.md b/reference/linalg/triangular_matrix_product.md
index 0305165d9..6326708b7 100644
--- a/reference/linalg/triangular_matrix_product.md
+++ b/reference/linalg/triangular_matrix_product.md
@@ -183,6 +183,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|B.extent(1)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

triangular_matrix_right_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_right_product.md b/reference/linalg/triangular_matrix_right_product.md
index 898374589..2f15da40a 100644
--- a/reference/linalg/triangular_matrix_right_product.md
+++ b/reference/linalg/triangular_matrix_right_product.md
@@ -72,6 +72,7 @@ $O(\verb|A.extent(0)| \times \verb|A.extent(1)| \times \verb|C.extent(0)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

triangular_matrix_vector_product -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_vector_product.md b/reference/linalg/triangular_matrix_vector_product.md
index 8131f5095..84a02ff41 100644
--- a/reference/linalg/triangular_matrix_vector_product.md
+++ b/reference/linalg/triangular_matrix_vector_product.md
@@ -148,6 +148,7 @@ namespace std::linalg {
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <iostream>
 #include <linalg>
 #include <mdspan>

triangular_matrix_vector_solve -- linalg : 並列版の例にのインクルードを追加

2026-09-16T19:26:12+09:00

diff --git a/reference/linalg/triangular_matrix_vector_solve.md b/reference/linalg/triangular_matrix_vector_solve.md
index c16a77880..fba51cbb4 100644
--- a/reference/linalg/triangular_matrix_vector_solve.md
+++ b/reference/linalg/triangular_matrix_vector_solve.md
@@ -178,6 +178,7 @@ $O(\verb|A.extent(1)|\times \verb|x.extent(0)|)$
 
 ```cpp example
 #include <array>
+#include <execution>
 #include <functional>
 #include <iostream>
 #include <linalg>

then -- execution::then : remove extra colon

2026-09-16T19:20:50+09:00

diff --git a/reference/execution/execution/then.md b/reference/execution/execution/then.md
index 7a3a54228..6bf14ace9 100644
--- a/reference/execution/execution/then.md
+++ b/reference/execution/execution/then.md
@@ -118,7 +118,7 @@ int main()
   }
 
   { // パイプライン記法
-    ex::sender auto sndr = ex::just('C', 2);
+    ex::sender auto sndr = ex::just('C', 2)
       | ex::then([](char ch, int n) {
           return ch + std::string(n, '+');
         });

make_heap -- make_heap : Compare版の実装例でループ変数の型が抜けていたのを修正

2026-09-16T19:14:08+09:00

diff --git a/reference/algorithm/make_heap.md b/reference/algorithm/make_heap.md
index ebc9030cc..981fc763a 100644
--- a/reference/algorithm/make_heap.md
+++ b/reference/algorithm/make_heap.md
@@ -108,7 +108,7 @@ void make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare co
   for (difference_type top = len / 2 - 1; top >= 0; --top) {
     value_type v = std::move(first[top]);
     difference_type p = top;
-    for (c = p * 2 + 1; c < len; c = p * 2 + 1) {
+    for (difference_type c = p * 2 + 1; c < len; c = p * 2 + 1) {
       if (c + 1 < len && comp(first[c], first[c + 1]))
         ++c;
       if (!bool(comp(v, first[c])))

コンストラクタ -- multiset : コンストラクタの誤りを2点修正

2026-09-16T19:11:17+09:00

diff --git a/reference/set/multiset/op_constructor.md b/reference/set/multiset/op_constructor.md
index 9b41c21a5..e4d958068 100644
--- a/reference/set/multiset/op_constructor.md
+++ b/reference/set/multiset/op_constructor.md
@@ -43,11 +43,11 @@ constexpr
            InputIterator last,
            const Allocator& a); // (5) C++26
 
-multiset(const set& x);           // (6) C++98
-constexpr multiset(const set& x); // (6) C++26
+multiset(const multiset& x);           // (6) C++98
+constexpr multiset(const multiset& x); // (6) C++26
 
-multiset(set&& y);           // (7) C++11
-constexpr multiset(set&& y); // (7) C++26
+multiset(multiset&& y);           // (7) C++11
+constexpr multiset(multiset&& y); // (7) C++26
 
 multiset(const multiset& x,
          const Allocator& alloc);                    // (8) C++11