1 files changed, 10 insertions, 0 deletions
diff --git a/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp b/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
index 77981075a2..ee9f88fc65 100644
--- a/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_tools_qhash.cpp
@@ -350,3 +350,13 @@ size_t qHash(const K &key);
 size_t qHash(K key, size_t seed);
 size_t qHash(const K &key, size_t seed);
 //! [32]
+
+//! [33]
+namespace std {
+template <> struct hash<K>
+{
+    // seed is optional
+    size_t operator()(const K &key, size_t seed = 0) const;
+};
+}
+//! [33]