QFlatMap: implement mutable op[] via try_emplace()

De-duplicates code.

Pick-to: 6.3
Change-Id: Id7841a0717cd66bd56d489e6d2630e9eeb284316
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>

1 files changed, 2 insertions, 12 deletions

diff --git a/src/corelib/tools/qflatmap_p.h b/src/corelib/tools/qflatmap_p.h
index 3be517a483..d9bcf08c9d 100644
--- a/src/corelib/tools/qflatmap_p.h
+++ b/src/corelib/tools/qflatmap_p.h
@@ -651,22 +651,12 @@ public:
 
     T &operator[](const Key &key)
     {
-        auto it = lower_bound(key);
-        if (it == end() || key_compare::operator()(key, it.key())) {
-            c.keys.insert(toKeysIterator(it), key);
-            return *c.values.insert(toValuesIterator(it), T());
-        }
-        return it.value();
+        return try_emplace(key).first.value();
     }
 
     T &operator[](Key &&key)
     {
-        auto it = lower_bound(key);
-        if (it == end() || key_compare::operator()(key, it.key())) {
-            c.keys.insert(toKeysIterator(it), key);
-            return *c.values.insert(toValuesIterator(it), T());
-        }
-        return it.value();
+        return try_emplace(std::move(key)).first.value();
     }
 
     T operator[](const Key &key) const