From 943a658c0763b62eff9f1a234bf561645e77b1cf Mon Sep 17 00:00:00 2001
From: Anton Kudryavtsev <a.kudryavtsev@netris.ru>
Date: Mon, 25 Apr 2016 12:20:08 +0300
Subject: QJsonObject: use reserve() to reduce memory allocations

Change-Id: I97821ffa0c485815c781dc4f98012b0b490da90a
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
---
 src/corelib/json/qjsonobject.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/corelib/json/qjsonobject.cpp')

diff --git a/src/corelib/json/qjsonobject.cpp b/src/corelib/json/qjsonobject.cpp
index 4ee20ef1682..7badc9d929f 100644
--- a/src/corelib/json/qjsonobject.cpp
+++ b/src/corelib/json/qjsonobject.cpp
@@ -304,6 +304,7 @@ QVariantHash QJsonObject::toVariantHash() const
 {
     QVariantHash hash;
     if (o) {
+        hash.reserve(o->length);
         for (uint i = 0; i < o->length; ++i) {
             QJsonPrivate::Entry *e = o->entryAt(i);
             hash.insert(e->key(), QJsonValue(d, o, e->value).toVariant());
-- 
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