From db61234f3b711a409509ab5d340a106a80c74c6e Mon Sep 17 00:00:00 2001
From: chrchr-github <noreply@github.com>
Date: Sun, 21 Dec 2025 22:15:01 +0100
Subject: [PATCH 1/2] Fix  #14340 FN containerOutOfBounds with
 std::initializer_list

---
 cfg/std.cfg      | 10 ++++++++++
 test/cfg/std.cpp | 12 ++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/cfg/std.cfg b/cfg/std.cfg
index 84cffb79828..fe43af1ec19 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -9009,6 +9009,16 @@ initializer list (7) string& replace (const_iterator i1, const_iterator i2, init
   <container id="stdBasicStringView" startPattern="std :: basic_string_view &lt;" inherits="stdAllStringView">
     <type templateParameter="0"/>
   </container>
+  <container id="stdInitializerList" startPattern="std :: initializer_list &lt;" endPattern="&gt; !!::" opLessAllowed="false" itEndPattern="&gt; :: iterator|const_iterator" hasInitializerListConstructor="true">
+    <type templateParameter="0"/>
+    <size>
+      <function name="size" yields="size" returnType="std::size_t"/>
+    </size>
+    <access>
+      <function name="begin" yields="start-iterator"/>
+      <function name="end" yields="end-iterator"/>
+    </access>
+  </container>
   <container id="stdStringView" startPattern="std :: string_view|wstring_view|u16string_view|u32string_view" endPattern="" inherits="stdAllStringView"/>
   <container id="stdExperimentalStringView" startPattern="std :: experimental :: string_view|wstring_view|u16string_view|u32string_view" endPattern="" inherits="stdAllStringView"/>
   <container id="stdExperimentalBasicStringView" startPattern="std :: experimental :: basic_string_view &lt;" inherits="stdBasicStringView" />
diff --git a/test/cfg/std.cpp b/test/cfg/std.cpp
index 455dbf7df7c..8a9976a94ae 100644
--- a/test/cfg/std.cpp
+++ b/test/cfg/std.cpp
@@ -5307,3 +5307,15 @@ void containerOutOfBounds_std_string(std::string &var) { // #11403
     // TODO cppcheck-suppress containerOutOfBounds
     var+= s5[3];
 }
+
+int containerOutOfBounds_std_initializer_list_access(const std::vector<int>& v) {
+    // cppcheck-suppress containerOutOfBounds
+    return v[2];
+}
+
+int containerOutOfBounds_std_initializer_list() { // #14340
+    std::initializer_list<int> x{ 1, 2 };
+    // cppcheck-suppress derefInvalidIterator
+    int i = *x.end();
+    return i + containerOutOfBounds_std_initializer_list_access(x);
+}
\ No newline at end of file

From 3a7f2189070d6d92836e0964da7a9878a8fa52f7 Mon Sep 17 00:00:00 2001
From: chrchr-github <noreply@github.com>
Date: Sun, 21 Dec 2025 23:11:04 +0100
Subject: [PATCH 2/2] Fix

---
 lib/checkother.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/checkother.cpp b/lib/checkother.cpp
index e1728788ecb..df842260906 100644
--- a/lib/checkother.cpp
+++ b/lib/checkother.cpp
@@ -1513,6 +1513,8 @@ void CheckOther::commaSeparatedReturnError(const Token *tok)
 static bool isLargeContainer(const Variable* var, const Settings& settings)
 {
     const ValueType* vt = var->valueType();
+    if (vt->container->startPattern == "std :: initializer_list <")
+        return false;
     if (vt->container->size_templateArgNo < 0)
         return true;
     const std::size_t maxByValueSize = 2 * settings.platform.sizeof_pointer;