libstdc++: Update tests on trunk [PR106201]
This copies the better tests from gcc-12 to trunk.
libstdc++-v3/ChangeLog:
PR libstdc++/106201
* testsuite/27_io/filesystem/iterators/106201.cc: Improve test.
* testsuite/experimental/filesystem/iterators/106201.cc: New test.
diff --git a/libstdc++-v3/testsuite/27_io/filesystem/iterators/106201.cc b/libstdc++-v3/testsuite/27_io/filesystem/iterators/106201.cc
index 4a64e67..c5fefd9 100644
--- a/libstdc++-v3/testsuite/27_io/filesystem/iterators/106201.cc
+++ b/libstdc++-v3/testsuite/27_io/filesystem/iterators/106201.cc
@@ -5,8 +5,10 @@
// PR libstdc++/106201 constraint recursion in path(Source const&) constructor.
#include <filesystem>
-#include <ranges>
-using I = std::counted_iterator<std::filesystem::directory_iterator>;
+#include <iterator>
+#include <concepts>
+namespace fs = std::filesystem;
+using I = std::counted_iterator<fs::directory_iterator>;
static_assert( std::swappable<I> );
-using R = std::counted_iterator<std::filesystem::recursive_directory_iterator>;
+using R = std::counted_iterator<fs::recursive_directory_iterator>;
static_assert( std::swappable<R> );
diff --git a/libstdc++-v3/testsuite/experimental/filesystem/iterators/106201.cc b/libstdc++-v3/testsuite/experimental/filesystem/iterators/106201.cc
new file mode 100644
index 0000000..017b72e
--- /dev/null
+++ b/libstdc++-v3/testsuite/experimental/filesystem/iterators/106201.cc
@@ -0,0 +1,14 @@
+// { dg-options "-std=gnu++20" }
+// { dg-do compile { target c++20 } }
+// { dg-require-filesystem-ts "" }
+
+// PR libstdc++/106201 constraint recursion in path(Source const&) constructor.
+
+#include <experimental/filesystem>
+#include <iterator>
+#include <concepts>
+namespace fs = std::experimental::filesystem;
+using I = std::counted_iterator<fs::directory_iterator>;
+static_assert( std::swappable<I> );
+using R = std::counted_iterator<fs::recursive_directory_iterator>;
+static_assert( std::swappable<R> );
