From 08559d2b77c5a65a656c4de19c551fd2b291952c Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Mon, 22 Jan 2018 00:39:06 -0800
Subject: [PATCH] JSON: use the new isLatin1 function

It's vectorized, so it should be faster than this version.

Change-Id: I56b444f9d6274221a3b7fffd150c1519eb999cdc
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
---
 src/corelib/serialization/qjson_p.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/corelib/serialization/qjson_p.h b/src/corelib/serialization/qjson_p.h
index 131528376b..7743382806 100644
--- a/src/corelib/serialization/qjson_p.h
+++ b/src/corelib/serialization/qjson_p.h
@@ -154,14 +154,7 @@ static inline bool useCompressed(const QString &s)
 {
     if (s.length() >= 0x8000)
         return false;
-    const ushort *uc = (const ushort *)s.constData();
-    const ushort *e = uc + s.length();
-    while (uc < e) {
-        if (*uc > 0xff)
-            return false;
-        ++uc;
-    }
-    return true;
+    return QtPrivate::isLatin1(s);
 }
 
 static inline int qStringSize(const QString &string, bool compress)