From ada13aa038abf107c9ef297c8ea0d3c3795823e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludvig=20Gunne=20Lindstr=C3=B6m?=
 <ludviggunnelindstrom@gmail.com>
Date: Sun, 8 Mar 2026 12:43:12 +0100
Subject: [PATCH 1/2] Add test

---
 test/testother.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/testother.cpp b/test/testother.cpp
index 0c6828a0b63..9ad57103b8f 100644
--- a/test/testother.cpp
+++ b/test/testother.cpp
@@ -4787,6 +4787,12 @@ class TestOther : public TestFixture {
               "    return h(s ? s->gnc() : 1);\n"
               "}\n");
         ASSERT_EQUALS("[test.cpp:5:11]: (style) Parameter 's' can be declared as pointer to const [constParameterPointer]\n", errout_str());
+
+        check("using IntPtr = int *;\n"
+              "int* foo(IntPtr bar) {\n"
+              "  return bar = 0;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout_str());
     }
 
     void constArray() {

From b643d8f1dc3cfaf8aa1f8f91ec9d00ea550e7c7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludvig=20Gunne=20Lindstr=C3=B6m?=
 <ludviggunnelindstrom@gmail.com>
Date: Sun, 8 Mar 2026 12:38:51 +0100
Subject: [PATCH 2/2] Fix #14539

---
 lib/tokenize.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 7bdba656374..0973d7c1731 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -3013,6 +3013,9 @@ bool Tokenizer::simplifyUsing()
         if (!usingEnd)
             continue;
 
+        for (Token *typeTok = start; typeTok != usingEnd; typeTok = typeTok->next())
+            typeTok->isSimplifiedTypedef(true);
+
         // Move struct defined in using out of using.
         // using T = struct t { }; => struct t { }; using T = struct t;
         // fixme: this doesn't handle attributes