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From: onihusube <44743040+onihusube@users.noreply.github.com>
Date: Wed, 13 Sep 2023 12:18:46 +0900
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---
 lang/cpp23/feature_test_macros.md | 22 ++++++++++++++++++++++
 reference/version.md              |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 lang/cpp23/feature_test_macros.md

diff --git a/lang/cpp23/feature_test_macros.md b/lang/cpp23/feature_test_macros.md
new file mode 100644
index 0000000000..c1b8095cab
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+++ b/lang/cpp23/feature_test_macros.md
@@ -0,0 +1,22 @@
+# 機能テストマクロ
+* cpp23[meta cpp]
+
+## 概要
+
+### 言語機能
+
+| マクロ名 | 値 | 機能 |
+|----------|----|------|
+||||
+
+### ライブラリ
+
+ライブラリの機能テストマクロは全て[`<version>`](/reference/version.md)でも提供される。
+
+| マクロ名 | 値 | 機能 | ヘッダ |
+|----------|----|------|--------|
+|`__cpp_lib_ranges_as_const`|`202207L`|`ranges::cbegin`が常に定数イテレータを返すようにする|[`<ranges>`](/reference/ranges.md)|
+
+## 参照
+
+- [SD-FeatureTest: Feature-Test Macros and Policies - isocpp](https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations)
diff --git a/reference/version.md b/reference/version.md
index 12a24a50d6..f937274186 100644
--- a/reference/version.md
+++ b/reference/version.md
@@ -13,6 +13,7 @@
 - [C++14 機能テストマクロ](/lang/cpp14/feature_test_macros.md)
 - [C++17 機能テストマクロ](/lang/cpp17/feature_test_macros.md)
 - [C++20 機能テストマクロ](/lang/cpp20/feature_test_macros.md)
+- [C++23 機能テストマクロ](/lang/cpp23/feature_test_macros.md)
 
 ## 参照
 - [P0754R2 `<version>`](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0754r2.pdf)