docs: Document cast formatting rules

diff --git a/docs/CODING_STYLE.md b/docs/CODING_STYLE.md
index 18fefb484668a1024129241b814aa3be177518e2..a890bd25ecd8e02db12070fadde923664aec552d 100644 (file)
--- a/docs/CODING_STYLE.md
+++ b/docs/CODING_STYLE.md
@@ -67,6 +67,18 @@ SPDX-License-Identifier: LGPL-2.1-or-later
   const char *foo(const char *input);
   ```
 
+- Casts should be written like this:
+
+  ```c
+  (const char*) s;
+  ```
+
+  instead of this:
+
+  ```c
+  (const char *)s;
+  ```
+
 - Single-line `if` blocks should not be enclosed in `{}`. Write this:
 
   ```c