[    8s] app_fancoarsening.cpp:41:3: warning: no return statement in function returning non-void [-Wreturn-type]
[   13s] app_main.cpp:184:12: warning: deleting object of polymorphic class type 'EnumerationAlgorithm' which has non-virtual destructor might cause undefined behavior [-Wdelete-non-virtual-dtor]
[   13s]      delete rs;       //<--- In next release, make the class virtual
[   15s] app_main.cpp:208:12: warning: deleting object of abstract class type 'EnumerationFilePrinter' which has non-virtual destructor will cause undefined behavior [-Wdelete-non-virtual-dtor]
[   15s]      delete ep;//<--- In next release, make the class virtual
[   18s] app_test.cpp:103:1: warning: no return statement in function returning non-void [-Wreturn-type]
[   20s] app_tropicalhypersurfacereconstruction.cpp:57:3: warning: no return statement in function returning non-void [-Wreturn-type]
[   27s] gfanlib_tropicalhomotopy.h:457:8: warning: operation on 'numberToDrop' may be undefined [-Wsequence-point]
[   27s]     int numberToDrop=(subconfigurationIndex!=0) ? numberToDrop=k+1 : 0;

---
 src/app_fancoarsening.cpp                      |    1 +
 src/app_test.cpp                               |    4 ++--
 src/app_tropicalhypersurfacereconstruction.cpp |    1 +
 src/enumeration.h                              |    3 +++
 src/gfanlib_tropicalhomotopy.h                 |    2 +-
 5 files changed, 8 insertions(+), 3 deletions(-)

Index: gfan0.6.2/src/app_fancoarsening.cpp
===================================================================
--- gfan0.6.2.orig/src/app_fancoarsening.cpp
+++ gfan0.6.2/src/app_fancoarsening.cpp
@@ -37,6 +37,7 @@ public:
   {
 
     int i=0;
+    return {};
 
   }
 
Index: gfan0.6.2/src/app_test.cpp
===================================================================
--- gfan0.6.2.orig/src/app_test.cpp
+++ gfan0.6.2/src/app_test.cpp
@@ -98,8 +98,8 @@ int testIntegers()
 		b=a;
 		a=c;
 		cerr<<a<<endl;
-	}
-	return 0;*/
+	}*/
+	return 0;
 }
 	int testGfanLib()
 	{
Index: gfan0.6.2/src/app_tropicalhypersurfacereconstruction.cpp
===================================================================
--- gfan0.6.2.orig/src/app_tropicalhypersurfacereconstruction.cpp
+++ gfan0.6.2/src/app_tropicalhypersurfacereconstruction.cpp
@@ -53,6 +53,7 @@ public:
   {
 
     int i=0;
+    return {};
 
   }
 
Index: gfan0.6.2/src/enumeration.h
===================================================================
--- gfan0.6.2.orig/src/enumeration.h
+++ gfan0.6.2/src/enumeration.h
@@ -25,6 +25,8 @@ class EnumerationTargetCollector: public
 
 class EnumerationPrinter: public EnumerationTarget
 {
+	public:
+	virtual ~EnumerationPrinter() = default;
 };
 
 
@@ -60,6 +62,7 @@ class EnumerationAlgorithm
   void targetEndEnumeration(){if(target)target->endEnumeration();}
   bool targetBasis(const PolynomialSet &groebnerBasis){bool ret=true;if(target)ret=target->basis(groebnerBasis);printProgress();return ret;}
  public:
+  virtual ~EnumerationAlgorithm() = default;
   EnumerationAlgorithm(){target=0;progressCounter=0;}
   void setEnumerationTarget(EnumerationTarget *target){this->target=target;}
   virtual void enumerate(const PolynomialSet &groebnerBasis){}
Index: gfan0.6.2/src/gfanlib_tropicalhomotopy.h
===================================================================
--- gfan0.6.2.orig/src/gfanlib_tropicalhomotopy.h
+++ gfan0.6.2/src/gfanlib_tropicalhomotopy.h
@@ -454,7 +454,7 @@ template<class mvtyp, class mvtypDouble,
 			//chioices are "relative" so no update is needed.
 
 			choices=parent.choices;
-			int numberToDrop=(subconfigurationIndex!=0) ? numberToDrop=k+1 : 0;
+			int numberToDrop=(subconfigurationIndex!=0) ? k+1 : 0;
 
 			choices[subconfigurationIndex-1].first-=numberToDrop;
 			choices[subconfigurationIndex-1].second-=numberToDrop;