tcp/sctp: fixed a few warnings

Author: rhornig

src/inet/transportlayer/sctp/SCTPAssociationUtil.cc

@@ -141,7 +141,7 @@ void SCTPAssociation::printSctpPathMap() const
 const char *SCTPAssociation::stateName(const int32 state)
 {
 #define CASE(x)    case x: \
-        s = #x + 7; break
+        s = (char *)#x + 7; break
     const char *s = "unknown";
     switch (state) {
         CASE(SCTP_S_CLOSED);
@@ -160,7 +160,7 @@ const char *SCTPAssociation::stateName(const int32 state)
 const char *SCTPAssociation::eventName(const int32 event)
 {
 #define CASE(x)    case x: \
-        s = #x + 7; break
+        s = (char *)#x + 7; break
     const char *s = "unknown";
     switch (event) {
         CASE(SCTP_E_OPEN_PASSIVE);
@@ -206,7 +206,7 @@ const char *SCTPAssociation::eventName(const int32 event)
 const char *SCTPAssociation::indicationName(const int32 code)
 {
 #define CASE(x)    case x: \
-        s = #x + 7; break
+        s = (char *)#x + 7; break
     const char *s = "unknown";
     switch (code) {
         CASE(SCTP_I_DATA);

src/inet/transportlayer/tcp/TCPConnectionUtil.cc

@@ -45,7 +45,7 @@ namespace tcp {
 const char *TCPConnection::stateName(int state)
 {
 #define CASE(x)    case x: \
-        s = #x + 6; break
+        s = (char *)#x + 6; break
     const char *s = "unknown";
     switch (state) {
         CASE(TCP_S_INIT);
@@ -68,7 +68,7 @@ const char *TCPConnection::stateName(int state)
 const char *TCPConnection::eventName(int event)
 {
 #define CASE(x)    case x: \
-        s = #x + 6; break
+        s = (char *)#x + 6; break
     const char *s = "unknown";
     switch (event) {
         CASE(TCP_E_IGNORE);
@@ -98,7 +98,7 @@ const char *TCPConnection::eventName(int event)
 const char *TCPConnection::indicationName(int code)
 {
 #define CASE(x)    case x: \
-        s = #x + 6; break
+        s = (char *)#x + 6; break
     const char *s = "unknown";
     switch (code) {
         CASE(TCP_I_DATA);

src/inet/transportlayer/tcp_lwip/TcpLwipConnection.cc

@@ -151,7 +151,7 @@ void TcpLwipConnection::sendEstablishedMsg()
 const char *TcpLwipConnection::indicationName(int code)
 {
 #define CASE(x)    case x: \
-        s = #x + 6; break
+        s = (char *)#x + 6; break
     const char *s = "unknown";
 
     switch (code) {