From a01fe3b4c14c6d7b99ee3f07c9e80058c6403097 Mon Sep 17 00:00:00 2001
From: ToruNiina <ToruNiina@users.noreply.github.com>
Date: Mon, 31 Mar 2025 16:36:19 +0000
Subject: [PATCH] feat [skip ci]: update single_include

---
 single_include/toml.hpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/single_include/toml.hpp b/single_include/toml.hpp
index 6310050..e072445 100644
--- a/single_include/toml.hpp
+++ b/single_include/toml.hpp
@@ -3653,6 +3653,7 @@ struct from;
 #include <string>
 #include <tuple>
 #include <type_traits>
+#include <unordered_set>
 #include <utility>
 
 #if defined(TOML11_HAS_STRING_VIEW)
@@ -3807,6 +3808,12 @@ struct is_std_tuple_impl<std::tuple<Ts...>> : std::true_type{};
 template<typename T>
 using is_std_tuple = is_std_tuple_impl<cxx::remove_cvref_t<T>>;
 
+template<typename T> struct is_unordered_set_impl : std::false_type {};
+template<typename T>
+struct is_unordered_set_impl<std::unordered_set<T>> : std::true_type {};
+template<typename T>
+using is_unordered_set = is_unordered_set_impl<cxx::remove_cvref_t<T>>;
+
 #if defined(TOML11_HAS_OPTIONAL)
 template<typename T> struct is_std_optional_impl : std::false_type{};
 template<typename T>
@@ -9227,6 +9234,25 @@ get(const basic_value<TC>& v)
             cxx::make_index_sequence<std::tuple_size<T>::value>{});
 }
 
+// ============================================================================
+// std::unordered_set
+
+template<typename T, typename TC>
+cxx::enable_if_t<toml::detail::is_unordered_set<T>::value, T>
+get(const basic_value<TC>& v)
+{
+    using value_type = typename T::value_type;
+    const auto& a = v.as_array();
+
+    T container;
+    for (const auto& elem : a)
+    {
+        container.insert(get<value_type>(elem));
+    }
+    return container;
+}
+
+
 // ============================================================================
 // map-like types; most likely STL map, like std::map or std::unordered_map.