commit fe82a91f19aa16be7fb1e3c019014f889e47436d
Author: Sarah Kate <netcatkate@gmail.com>
Date:   Fri Oct 7 15:28:48 2022 -0400

    Exception operator<<'s need to return the ostream
    
    This may have worked before, but it was undefined behavior.

diff --git a/libMRML/cc/GIFTExceptions.cc b/libMRML/cc/GIFTExceptions.cc
index d2225b6..1d54778 100644
--- a/libMRML/cc/GIFTExceptions.cc
+++ b/libMRML/cc/GIFTExceptions.cc
@@ -48,6 +48,7 @@ ostream& operator<<(ostream& outStream,const GIFTException& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 void GIFTException::dummy(){//needed for RTTI/exception catching
@@ -67,6 +68,7 @@ ostream& operator<<(ostream& outStream,const VEProgrammingMistake& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 VENotFound::VENotFound(const char* inMessage):
@@ -78,6 +80,7 @@ ostream& operator<<(ostream& outStream,const VENotFound& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 VEBaseUnknown::VEBaseUnknown(const char* inMessage):
@@ -89,6 +92,7 @@ ostream& operator<<(ostream& outStream,const VEBaseUnknown& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 
@@ -101,6 +105,7 @@ ostream& operator<<(ostream& outStream,const VEDoubleInsert& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 
@@ -113,6 +118,7 @@ ostream& operator<<(ostream& outStream,const VEWrongAccessor& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 
@@ -125,6 +131,7 @@ ostream& operator<<(ostream& outStream,const VEWrongAlgorithm& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 VEWrongBaseType::VEWrongBaseType(const char* inMessage):
     GIFTException(inMessage){
@@ -135,6 +142,7 @@ ostream& operator<<(ostream& outStream,const VEWrongBaseType& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 VEConfigurationError::VEConfigurationError(const char* inMessage):
     GIFTException(inMessage){
@@ -145,6 +153,7 @@ ostream& operator<<(ostream& outStream,const VEConfigurationError& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }
 
 
@@ -157,5 +166,6 @@ ostream& operator<<(ostream& outStream,const VEUnknownSession& inException){
 	      << inException.mMessage
 	      << flush
 	      << endl;
+    return outStream;
 }