diff --git a/lib/astutils.cpp b/lib/astutils.cpp
index cf6d8a496..a8eb38609 100644
--- a/lib/astutils.cpp
+++ b/lib/astutils.cpp
@@ -2356,6 +2356,11 @@ int getArgumentPos(const Variable* var, const Function* f)
     return std::distance(f->argumentList.begin(), arg_it);
 }
 
+bool isIteratorPair(std::vector<const Token*> args)
+{
+    return args.size() == 2 && ((astIsIterator(args[0]) && astIsIterator(args[1])) || (astIsPointer(args[0]) && astIsPointer(args[1])));
+}
+
 const Token *findLambdaStartToken(const Token *last)
 {
     if (!last || last->str() != "}")
diff --git a/lib/astutils.h b/lib/astutils.h
index f3364c6cd..ee1b0d874 100644
--- a/lib/astutils.h
+++ b/lib/astutils.h
@@ -274,6 +274,11 @@ std::vector<const Token *> getArguments(const Token *ftok);
 
 int getArgumentPos(const Variable* var, const Function* f);
 
+/**
+ * Are the arguments a pair of iterators/pointers?
+ */
+bool isIteratorPair(std::vector<const Token*> args);
+
 const Token *findLambdaStartToken(const Token *last);
 
 /**
diff --git a/lib/valueflow.cpp b/lib/valueflow.cpp
index 640598300..d4b0065be 100644
--- a/lib/valueflow.cpp
+++ b/lib/valueflow.cpp
@@ -6972,7 +6972,7 @@ static std::vector<ValueFlow::Value> getInitListSize(const Token* tok,
         }
         return {};
     } else if ((args.size() == 1 && astIsContainer(args[0]) && args[0]->valueType()->container == container) ||
-               (args.size() == 2 && astIsIterator(args[0]) && astIsIterator(args[1]))) {
+               isIteratorPair(args)) {
         return getContainerValues(args[0]);
     }
     return {makeContainerSizeValue(args.size(), known)};
diff --git a/test/testvalueflow.cpp b/test/testvalueflow.cpp
index 12366df42..3c3b2eb1f 100644
--- a/test/testvalueflow.cpp
+++ b/test/testvalueflow.cpp
@@ -5177,6 +5177,13 @@ private:
                "}";
         ASSERT(tokenValues(code, "s . size").empty());
 
+        code = "void f() {\n"
+               "    const uint8_t data[] = { 1, 2, 3 };\n"
+               "    std::vector<uint8_t> v{ data, data + sizeof(data) };\n"
+               "    v.size();\n"
+               "}";
+        TODO_ASSERT_EQUALS("", "ContainerSizeValue", isKnownContainerSizeValue(tokenValues(code, "v . size"), 3)); // TODO: extract container size
+
         // valueFlowContainerForward, loop
         code = "void f() {\n"
                "    std::stack<Token *> links;\n"