Совместимость с Qt 5.5

src/myx-example-features/main.cpp

@@ -7,7 +7,11 @@
 #include <QCoreApplication>
 #include <QDebug>
 #include <QFile>
+#if QT_VERSION >= 0x051000
 #include <QRandomGenerator>
+#else
+#include <cstdlib>
+#endif
 #include <QTimer>
 
 /**
@@ -39,7 +43,11 @@ int slowFunction()
 	double a[size];
 
 	for ( int i = 0; i < size; i++ ) {
+#if QT_VERSION >= 0x051000
 		a[i] = QRandomGenerator::global()->bounded( 4 );
+#else
+		a[i] = std::rand() / (RAND_MAX / 4);
+#endif
 		for ( int j = 0; j < i; j++ ) a[i] += sin( a[j] );
 		a[0] += a[i];
 	}
@@ -56,7 +64,11 @@ int fastFunction()
 	double a[size];
 
 	for ( int i = 0; i < size; i++ ) {
+#if QT_VERSION >= 0x051000
 		a[i] = QRandomGenerator::global()->bounded( 4 );
+#else
+		a[i] = std::rand() / (RAND_MAX / 4);
+#endif
 		for ( int j = 0; j < i; j++ ) a[i] += sin( a[j] );
 		a[0] += a[i];
 	}