From 9cd1938c185cb7f742200725f4e03e45779b9da0 Mon Sep 17 00:00:00 2001
From: Rageking8 <106309953+Rageking8@users.noreply.github.com>
Date: Sun, 29 Jun 2025 17:42:14 +0800
Subject: [PATCH 1/4] Add blockquotes for C2166 error message

---
 docs/error-messages/compiler-errors-1/compiler-error-c2166.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
index a4df5a1166..60fb087ebe 100644
--- a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
+++ b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
@@ -8,7 +8,7 @@ ms.assetid: 12789c3a-cc76-48bb-ae2e-64283e0964ed
 ---
 # Compiler Error C2166
 
-l-value specifies const object
+> l-value specifies const object
 
 Code attempts to modify an item declared **`const`**.
 

From 378fccd6e27df7fccb83ead58caf5bcf1b944354 Mon Sep 17 00:00:00 2001
From: Rageking8 <106309953+Rageking8@users.noreply.github.com>
Date: Sun, 29 Jun 2025 17:43:56 +0800
Subject: [PATCH 2/4] Add "Remarks" and "Example" headings in C2166 error
 reference

---
 .../compiler-errors-1/compiler-error-c2166.md               | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
index 60fb087ebe..083a3e3600 100644
--- a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
+++ b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
@@ -10,9 +10,13 @@ ms.assetid: 12789c3a-cc76-48bb-ae2e-64283e0964ed
 
 > l-value specifies const object
 
+## Remarks
+
 Code attempts to modify an item declared **`const`**.
 
-The following sample generates C2166:
+## Example
+
+The following example generates C2166:
 
 ```cpp
 // C2166.cpp

From efc6ebe07b40b670772195d008406d79c432b704 Mon Sep 17 00:00:00 2001
From: Rageking8 <106309953+Rageking8@users.noreply.github.com>
Date: Sun, 29 Jun 2025 17:49:24 +0800
Subject: [PATCH 3/4] Remove unused function `f` and format example in C2166
 error reference

---
 .../compiler-errors-1/compiler-error-c2166.md               | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
index 083a3e3600..14922dcc38 100644
--- a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
+++ b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
@@ -20,8 +20,8 @@ The following example generates C2166:
 
 ```cpp
 // C2166.cpp
-int f();
-int main() {
-   ( (const int&) 1 ) = 5;   // C2166
+int main()
+{
+    ((const int&)1) = 5;   // C2166
 }
 ```

From 8052c8512e1aeffff64c9a5d4b9711eccfad25e9 Mon Sep 17 00:00:00 2001
From: Rageking8 <106309953+Rageking8@users.noreply.github.com>
Date: Sun, 29 Jun 2025 17:50:32 +0800
Subject: [PATCH 4/4] Update metadata in C2166 error reference

---
 .../error-messages/compiler-errors-1/compiler-error-c2166.md | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
index 14922dcc38..82508f2bf9 100644
--- a/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
+++ b/docs/error-messages/compiler-errors-1/compiler-error-c2166.md
@@ -1,10 +1,9 @@
 ---
-description: "Learn more about: Compiler Error C2166"
 title: "Compiler Error C2166"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2166"
+ms.date: 06/29/2025
 f1_keywords: ["C2166"]
 helpviewer_keywords: ["C2166"]
-ms.assetid: 12789c3a-cc76-48bb-ae2e-64283e0964ed
 ---
 # Compiler Error C2166