[gnoduino: 38/237] Added virtual destructor to Printable, which also requires new and delete operators to be added

[Lucian Langa <lucilanga src gnome org>]

commit d29d87af045294f6e33b1bad0adae8d958411581
Author: amcewen <amcewen bcs org uk>
Date:   Sun Apr 10 11:34:40 2011 +0100

    Added virtual destructor to Printable, which also requires new and delete operators to be added

 arduino/cores/arduino/Printable.h |    3 +++
 arduino/cores/arduino/new.cpp     |   18 ++++++++++++++++++
 arduino/cores/arduino/new.h       |   22 ++++++++++++++++++++++
 3 files changed, 43 insertions(+), 0 deletions(-)
---
diff --git a/arduino/cores/arduino/Printable.h b/arduino/cores/arduino/Printable.h
index e5d7732..5ff6077 100644
--- a/arduino/cores/arduino/Printable.h
+++ b/arduino/cores/arduino/Printable.h
@@ -20,6 +20,8 @@
 #ifndef Printable_h
 #define Printable_h
 
+#include <new.h>
+
 class Print;
 
 /** The Printable class provides a way for new classes to allow themselves to be printed.
@@ -31,6 +33,7 @@ class Print;
 class Printable
 {
   public:
+    virtual ~Printable() {};
     virtual void printTo(Print& p) const =0;
 };
 
diff --git a/arduino/cores/arduino/new.cpp b/arduino/cores/arduino/new.cpp
new file mode 100644
index 0000000..0f6d422
--- /dev/null
+++ b/arduino/cores/arduino/new.cpp
@@ -0,0 +1,18 @@
+#include <new.h>
+
+void * operator new(size_t size)
+{
+  return malloc(size);
+}
+
+void operator delete(void * ptr)
+{
+  free(ptr);
+} 
+
+int __cxa_guard_acquire(__guard *g) {return !*(char *)(g);};
+void __cxa_guard_release (__guard *g) {*(char *)g = 1;};
+void __cxa_guard_abort (__guard *) {}; 
+
+void __cxa_pure_virtual(void) {};
+
diff --git a/arduino/cores/arduino/new.h b/arduino/cores/arduino/new.h
new file mode 100644
index 0000000..cd940ce
--- /dev/null
+++ b/arduino/cores/arduino/new.h
@@ -0,0 +1,22 @@
+/* Header to define new/delete operators as they aren't provided by avr-gcc by default
+   Taken from http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=59453 
+ */
+
+#ifndef NEW_H
+#define NEW_H
+
+#include <stdlib.h>
+
+void * operator new(size_t size);
+void operator delete(void * ptr); 
+
+__extension__ typedef int __guard __attribute__((mode (__DI__)));
+
+extern "C" int __cxa_guard_acquire(__guard *);
+extern "C" void __cxa_guard_release (__guard *);
+extern "C" void __cxa_guard_abort (__guard *); 
+
+extern "C" void __cxa_pure_virtual(void);
+
+#endif
+