Fixed QDataStream QString's utf8 to utf16 and unfair benchmarks

tests/QBind/QDataStream_impl.h

@@ -67,6 +67,7 @@ protected:
     bool _record  (quint32* cols=nullptr) { Q_UNUSED(cols)        ; return true; }
     bool _null    (                     ) {                         return true; }
     bool _bind    (        const char* s) {           *io <<     s; return true; }
+    bool _bind    (           QString& s) {           *io <<     s; return true; }
     bool _bind    (              bool& b) {           *io <<     b; return true; }
     bool _bind    (             float& f) {           *io <<     f; return true; }
     bool _bind    (            double& d) {           *io <<     d; return true; }
@@ -84,6 +85,7 @@ private:
     QDataStream* io;
 };
 template<> struct BindSupport<DataStreamWriter,const char*> : BindNative {};
+template<> struct BindSupport<DataStreamWriter,   QString&> : BindNative {};
 template<> struct BindSupport<DataStreamWriter,      bool&> : BindNative {};
 template<> struct BindSupport<DataStreamWriter,     float&> : BindNative {};
 template<> struct BindSupport<DataStreamWriter,    double&> : BindNative {};

tests/QBind/main.cpp

@@ -247,9 +247,8 @@ int main()
         START {
             b.seek(0); b.buffer().clear();
             QDataStream data(&b);
-            data << '[';
             for (int i=0; i < 16; i++) {
-            data << ' ' << transform[i];
+            data << transform[i];
             };
         }
         STOP("QDataStream",QString::fromUtf8(b.buffer().toHex()));
@@ -299,13 +298,12 @@ int main()
     {
         START {
             b.seek(0); b.buffer().clear();
-            QDataStream(&b) << '['
-                << ' ' << person.firstName.constData()
-                << ' ' << person. lastName.constData()
-                << ' ' << person.   height
-                << ' ' << person.      age
-                << ' ' << person.   phones
-                << ']'
+            QDataStream(&b)
+                << person.firstName.constData()
+                << person. lastName.constData()
+                << person.   height
+                << person.      age
+                << person.   phones
                 ;
         }
         STOP("QDataStream",QString::fromUtf8(b.buffer().toHex()));