From 826e6414a0af9039c08da4d7c2332e9d952620aa Mon Sep 17 00:00:00 2001
From: ToruNiina <niina.toru.68u@gmail.com>
Date: Wed, 10 Jul 2024 02:04:19 +0900
Subject: [PATCH] feat: add detail::is_std_basic_string

to check if type T is a kind of std::basic_string<Char,...>
---
 include/toml11/traits.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/toml11/traits.hpp b/include/toml11/traits.hpp
index 0a0fa79..69b6d1d 100644
--- a/include/toml11/traits.hpp
+++ b/include/toml11/traits.hpp
@@ -162,6 +162,12 @@ struct is_std_forward_list_impl<std::forward_list<T>> : std::true_type{};
 template<typename T>
 using is_std_forward_list = is_std_forward_list_impl<cxx::remove_cvref_t<T>>;
 
+template<typename T> struct is_std_basic_string_impl : std::false_type{};
+template<typename T>
+struct is_std_basic_string_impl<std::basic_string<T>> : std::true_type{};
+template<typename T>
+using is_std_basic_string = is_std_basic_string_impl<cxx::remove_cvref_t<T>>;
+
 template<typename T> struct is_chrono_duration_impl: std::false_type{};
 template<typename Rep, typename Period>
 struct is_chrono_duration_impl<std::chrono::duration<Rep, Period>>: std::true_type{};