From 5ec0b66775ec349f28a4c58834cd5268a2f90262 Mon Sep 17 00:00:00 2001
From: Ian Rash <ian@sol.vin>
Date: Thu, 14 Nov 2024 10:56:29 -0800
Subject: [PATCH] Add `include` info to c-binding's `struct`

---
 docs/syntax_and_semantics/c_bindings/struct.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/docs/syntax_and_semantics/c_bindings/struct.md b/docs/syntax_and_semantics/c_bindings/struct.md
index 90ed9a1bd..4c8961b08 100644
--- a/docs/syntax_and_semantics/c_bindings/struct.md
+++ b/docs/syntax_and_semantics/c_bindings/struct.md
@@ -41,6 +41,24 @@ lib C
 end
 ```
 
+Structs that are defined inside a `lib` can be included as modules internally in other `lib` defined structs, for example:
+
+```crystal
+lib Lib
+  struct Foo
+    x : Int32
+    y : Int16
+  end
+
+  struct Bar
+    include Foo
+    z : Int8
+  end
+end
+
+Lib::Bar.new # => Lib::Bar(@x=0, @y=0, @z=0)
+```
+
 To create an instance of a struct use `new`:
 
 ```crystal