From 43070070e691b91998fd191ddee85f8afea0fda2 Mon Sep 17 00:00:00 2001
From: neargye <neargye@gmail.com>
Date: Wed, 21 Jun 2023 12:45:59 +0400
Subject: [PATCH] fix enum_type_name in namespace

---
 include/magic_enum.hpp | 11 +++++++++++
 test/test.cpp          | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/include/magic_enum.hpp b/include/magic_enum.hpp
index 2bcdd1e..be0b7c2 100644
--- a/include/magic_enum.hpp
+++ b/include/magic_enum.hpp
@@ -438,6 +438,17 @@ constexpr auto n() noexcept {
 #else
     auto name = str_view{};
 #endif
+    std::size_t p = 0;
+    for (std::size_t i = name.size_; i > 0; --i) {
+      if (name.str_[i] == ':') {
+        p = i + 1;
+        break;
+      }
+    }
+    if (p > 0) {
+      name.size_ -= p;
+      name.str_ += p;
+    }
     return name;
   } else {
     return str_view{}; // Unsupported compiler or Invalid customize.
diff --git a/test/test.cpp b/test/test.cpp
index 3e58e13..f974de2 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -844,6 +844,38 @@ TEST_CASE("enum_type_name") {
   REQUIRE(enum_type_name<const Numbers>() == "Numbers");
   REQUIRE(enum_type_name<const Directions&>() == "Directions");
   REQUIRE(enum_type_name<number>() == "number");
+
+  REQUIRE(enum_type_name<lt1>() == "lt1");
+  REQUIRE(enum_type_name<lt2>() == "lt2");
+  REQUIRE(enum_type_name<lt3>() == "lt3");
+  REQUIRE(enum_type_name<lt4>() == "lt4");
+  REQUIRE(enum_type_name<foo1::lt5>() == "lt5");
+  REQUIRE(enum_type_name<foo2::lt6>() == "lt6");
+  REQUIRE(enum_type_name<decltype(foo2::s6)>() == "lt6");
+
+  REQUIRE(enum_type_name<boo1::lt1>() == "lt1");
+  REQUIRE(enum_type_name<boo1::lt2>() == "lt2");
+  REQUIRE(enum_type_name<boo1::lt3>() == "lt3");
+  REQUIRE(enum_type_name<boo1::lt4>() == "lt4");
+  REQUIRE(enum_type_name<boo1::foo1::lt5>() == "lt5");
+  REQUIRE(enum_type_name<boo1::foo2::lt6>() == "lt6");
+  REQUIRE(enum_type_name<decltype(boo1::foo2::s6)>() == "lt6");
+
+  REQUIRE(enum_type_name<boo2::boo3::lt1>() == "lt1");
+  REQUIRE(enum_type_name<boo2::boo3::lt2>() == "lt2");
+  REQUIRE(enum_type_name<boo2::boo3::lt3>() == "lt3");
+  REQUIRE(enum_type_name<boo2::boo3::lt4>() == "lt4");
+  REQUIRE(enum_type_name<boo2::boo3::foo1::lt5>() == "lt5");
+  REQUIRE(enum_type_name<boo2::boo3::foo2::lt6>() == "lt6");
+  REQUIRE(enum_type_name<decltype(boo2::boo3::foo2::s6)>() == "lt6");
+
+  REQUIRE(enum_type_name<a_lt1>() == "a_lt1");
+  REQUIRE(enum_type_name<a_lt2>() == "a_lt2");
+  REQUIRE(enum_type_name<a_lt3>() == "a_lt3");
+  REQUIRE(enum_type_name<a_lt4>() == "a_lt4");
+  REQUIRE(enum_type_name<a_foo1::a_lt5>() == "a_lt5");
+  REQUIRE(enum_type_name<a_foo2::a_lt6>() == "a_lt6");
+  REQUIRE(enum_type_name<decltype(a_foo2::s6)>() == "a_lt6");
 }
 
 #if defined(MAGIC_ENUM_SUPPORTED_ALIASES)