arduino
diff --git a/‎api/Print.h
Copy file name to clipboardExpand all lines: api/Print.h
+2Lines changed: 2 additions & 0 deletions b/‎api/Print.h
Copy file name to clipboardExpand all lines: api/Print.h
+2Lines changed: 2 additions & 0 deletions
diff --git a/‎api/Printable.h
Copy file name to clipboardExpand all lines: api/Printable.h
+1Lines changed: 1 addition & 0 deletions b/‎api/Printable.h
Copy file name to clipboardExpand all lines: api/Printable.h
+1Lines changed: 1 addition & 0 deletions
@@ -43,6 +43,8 @@ class Print
     void setWriteError(int err = 1) { write_error = err; }
   public:
     Print() : write_error(0) {}
+    virtual ~Print() {}
+
 
     int getWriteError() { return write_error; }
     void clearWriteError() { setWriteError(0); }
 
@@ -34,6 +34,7 @@ class Print;
 class Printable
 {
   public:
+    virtual ~Printable() {}
     virtual size_t printTo(Print& p) const = 0;
 };
Original file line number	Diff line number	Diff line change
`@@ -34,6 +34,7 @@ class Print;`
`34`	`34`	`class Printable`
`35`	`35`	`{`
`36`	`36`	`public:`
	`37`	`+ virtual ~Printable() {}`
`37`	`38`	`virtual size_t printTo(Print& p) const = 0;`
`38`	`39`	`};`
`39`	`40`