Backport tweaks from 2.x.y

Author: Morwenn

docs/Sorter-adapters.md

@@ -17,7 +17,7 @@ constexpr auto sort = sorter{};
 constexpr auto sort = indirect_adapter(quick_sort);
 ```
 
-Most of the library's *sorter adapters* can store the passed *sorters* in their internals, allowing them to use adapt *stateful sorters*. Unless explicitly mentioned otherwise in an adapter's description, it is safe to assume that the *sorter adapters* in the library have the following properties:
+Most of the library's *sorter adapters* can store the passed *sorters* in their internals, allowing them to adapt *stateful sorters*. Unless explicitly mentioned otherwise in an adapter's description, it is safe to assume that the *sorter adapters* in the library have the following properties:
 * The *sorter adapter* stores a copy of every passed sorters in its internals and uses those copy when needed. If every *original sorter* is empty and default-constructible, then the *sorter adapter* is also empty and default-constructible.
 * If the *sorter adapter* adapts a single *sorter*, then it has a member function called `get()` which returns a reference to the internal *sorter* whose reference and `const` qualifications match those of the *sorter adapter* instance. If the *sorter adapter* is empty and default-constructible, then a default-constructed instance of the type of the *original sorter* is returned instead.
 * If the *sorter adapter* is empty and default-constructible, then it can be converted to any function pointer whose signature matches that of its `operator()`.

tests/adapters/every_adapter_stateful_sorter.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022 Morwenn
+ * Copyright (c) 2019-2024 Morwenn
  * SPDX-License-Identifier: MIT
  */
 #include <algorithm>
@@ -12,7 +12,6 @@
 #include <vector>
 #include <catch2/catch_test_macros.hpp>
 #include <cpp-sort/adapters.h>
-#include <cpp-sort/fixed_sorters.h>
 #include <cpp-sort/sorters/quick_merge_sorter.h>
 #include <testing-tools/distributions.h>