added pca command

[mothur.git] / command.hpp

diff --git a/command.hpp b/command.hpp
index 3e655abb19ed35729792e3f5783f119095c6fc61..1dd5e871aaa66362e02e997c9ff26b427ed9178a 100644 (file)
--- a/command.hpp
+++ b/command.hpp
@@ -10,7 +10,7 @@
  *
  */
 
-/*This class is a parent to all the command classes.  It has one pure int execute(). */
+/*This class is a parent to all the command classes.  */
 
 
 #include "mothur.h"
@@ -18,9 +18,11 @@
 #include "validparameter.h"
 
 class Command {
+       
        public:
                virtual int execute() = 0;
                virtual void help() = 0;
+               virtual ~Command() { }
 };
 
 #endif