Utils: Make port.h slimmer

Fix the fallout. Also make comparisons hidden friends.

Change-Id: Ib16a294391f5732f94f9f411a48220b497691de2
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/libs/utils/port.cpp

@@ -25,8 +25,11 @@
 
 #include "port.h"
 
+#include "qtcassert.h"
 #include "stringutils.h"
 
+#include <limits>
+
 /*! \class Utils::Port
 
   \brief The Port class implements a wrapper around a 16 bit port number
@@ -35,6 +38,21 @@
 
 namespace Utils {
 
+Port::Port(int port)
+    : m_port((port < 0 || port > std::numeric_limits<quint16>::max()) ? -1 : port)
+{
+}
+
+Port::Port(uint port)
+    : m_port(port > std::numeric_limits<quint16>::max() ? -1 : port)
+{
+}
+
+quint16 Port::number() const
+{
+    QTC_ASSERT(isValid(), return -1); return quint16(m_port);
+}
+
 QList<Port> Port::parseFromSedOutput(const QByteArray &output)
 {
     QList<Port> ports;