From: João Abecasis <joao.abecasis@nokia.com>
Date: Wed, 1 Feb 2012 16:57:24 +0000 (+0100)
Subject: Make QStringBuilder use memcpy for QByteArrayLiteral
X-Git-Tag: 071012110112~1235^2^2~294^2^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a2abc11b51864ea0bab4fdb3aa44f2ec7cf0cc15;p=profile%2Fivi%2Fqtbase.git

Make QStringBuilder use memcpy for QByteArrayLiteral

There is no need to do a bytewise copy looking for the terminating
nul-character when the size of the data is statically declared and known
ahead of time.

Change-Id: I787745a58955d1a366624f9ea92e9e701de8c981
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
---

diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h
index 1afdde8..e524523 100644
--- a/src/corelib/tools/qstringbuilder.h
+++ b/src/corelib/tools/qstringbuilder.h
@@ -376,9 +376,8 @@ template <int N> struct QConcatenable<QStaticByteArrayDataPtr<N> > : private QAb
 #endif
     static inline void appendTo(const type &ba, char *&out)
     {
-        const char *a = ba.ptr->data;
-        while (*a)
-            *out++ = *a++;
+        ::memcpy(out, ba.ptr->data, N);
+        out += N;
     }
 };