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+/*
+ * This source code is released into the public domain.
+ */
+
+module;
+
+#include <expected>
+#include <filesystem>
+
+export module nihil.posix:rename;
+
+import nihil.error;
+
+namespace nihil {
+
+/*
+ * Rename a file (or directory).
+ */
+export [[nodiscard]] auto
+rename(std::filesystem::path const &oldp, std::filesystem::path const &newp)
+ -> std::expected<void, error>;
+
+} // namespace nihil