From 83ba339eb52c6ebdb2991f7139e764217ebd0ae2 Mon Sep 17 00:00:00 2001
From: Orange <orange-cpp@yandex.ru>
Date: Thu, 25 Sep 2025 21:57:05 +0300
Subject: [PATCH] fix

---
 include/omath/angle.hpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/include/omath/angle.hpp b/include/omath/angle.hpp
index 1f9d820..993ddae 100644
--- a/include/omath/angle.hpp
+++ b/include/omath/angle.hpp
@@ -162,6 +162,7 @@ struct std::formatter<omath::Angle<T, MinV, MaxV, F>, char> // NOLINT(*-dcl58-cp
     }
 
     template<class FormatContext>
+    [[nodiscard]]
     auto format(const AngleT& a, FormatContext& ctx) const
     {
         static_assert(std::is_same_v<typename FormatContext::char_type, char>);
@@ -181,9 +182,30 @@ struct std::formatter<omath::Angle<T, MinV, MaxV, F>, wchar_t> // NOLINT(*-dcl58
     }
 
     template<class FormatContext>
+    [[nodiscard]]
     auto format(const AngleT& a, FormatContext& ctx) const
     {
         static_assert(std::is_same_v<typename FormatContext::char_type, wchar_t>);
         return std::format_to(ctx.out(), L"{}deg", a.as_degrees());
     }
 };
+
+// wchar_t formatter
+template<class T, T MinV, T MaxV, omath::AngleFlags F>
+struct std::formatter<omath::Angle<T, MinV, MaxV, F>, char8_t> // NOLINT(*-dcl58-cpp)
+{
+    using AngleT = omath::Angle<T, MinV, MaxV, F>;
+
+    static constexpr auto parse(std::wformat_parse_context& ctx)
+    {
+        return ctx.begin();
+    }
+
+    template<class FormatContext>
+    [[nodiscard]]
+    auto format(const AngleT& a, FormatContext& ctx) const
+    {
+        static_assert(std::is_same_v<typename FormatContext::char_type, char8_t>);
+        return std::format_to(ctx.out(), u8"{}deg", a.as_degrees());
+    }
+};