diff --git a/src/emu/debugint/debugint.c b/src/emu/debugint/debugint.c
index 0f8569e218c..918d8dd5335 100644
--- a/src/emu/debugint/debugint.c
+++ b/src/emu/debugint/debugint.c
@@ -956,7 +956,7 @@ static void process_string(DView *dv, const char *str)
 		downcast<debug_view_disasm *>(dv->view)->set_expression(str);
 		break;
 	case DVT_CONSOLE:
-		if(!dv->editor.str[0])
+		if(!dv->editor.str[(long)0])
 			debug_cpu_get_visible_cpu(dv->machine)->debug()->single_step();
 		else
 			debug_console_execute_command(dv->machine, str, 1);
diff --git a/src/emu/devintrf.h b/src/emu/devintrf.h
index f1f32810524..ed7c058d0c3 100644
--- a/src/emu/devintrf.h
+++ b/src/emu/devintrf.h
@@ -545,7 +545,7 @@ protected:
 	{
 	public:
 		optional_device(device_t &base, const char *tag) : auto_finder_type<_DeviceClass *, false>(base, tag) { }
-		virtual void findit(device_t &base) { this->set_target(downcast<_DeviceClass *>(find_device(base, this->m_tag))); }
+		virtual void findit(device_t &base) { this->set_target(downcast<_DeviceClass *>(this->find_device(base, this->m_tag))); }
 	};
 
 	// required devices are similar but throw an error if they are not found
@@ -554,7 +554,7 @@ protected:
 	{
 	public:
 		required_device(device_t &base, const char *tag) : auto_finder_type<_DeviceClass *, true>(base, tag) { }
-		virtual void findit(device_t &base) { this->set_target(downcast<_DeviceClass *>(find_device(base, this->m_tag))); }
+		virtual void findit(device_t &base) { this->set_target(downcast<_DeviceClass *>(this->find_device(base, this->m_tag))); }
 	};
 
 	// optional shared pointer finder
@@ -563,7 +563,7 @@ protected:
 	{
 	public:
 		optional_shared_ptr(device_t &base, const char *tag) : auto_finder_type<_PointerType *, false>(base, tag) { }
-		virtual void findit(device_t &base) { this->set_target(reinterpret_cast<_PointerType *>(find_shared_ptr(base, this->m_tag))); }
+		virtual void findit(device_t &base) { this->set_target(reinterpret_cast<_PointerType *>(this->find_shared_ptr(base, this->m_tag))); }
 	};
 
 	// required shared pointer finder
@@ -572,7 +572,7 @@ protected:
 	{
 	public:
 		required_shared_ptr(device_t &base, const char *tag) : auto_finder_type<_PointerType *, true>(base, tag) { }
-		virtual void findit(device_t &base) { this->set_target(reinterpret_cast<_PointerType *>(find_shared_ptr(base, this->m_tag))); }
+		virtual void findit(device_t &base) { this->set_target(reinterpret_cast<_PointerType *>(this->find_shared_ptr(base, this->m_tag))); }
 	};
 
 	// optional shared pointer size finder
diff --git a/src/emu/emualloc.h b/src/emu/emualloc.h
index 6df6114f7ca..e4ff11a424c 100644
--- a/src/emu/emualloc.h
+++ b/src/emu/emualloc.h
@@ -220,13 +220,13 @@ inline void *operator new[](std::size_t size) throw (std::bad_alloc)
 	return result;
 }
 
-inline void operator delete(void *ptr)
+inline void operator delete(void *ptr) throw()
 {
 	if (ptr != NULL)
 		free_file_line(ptr, NULL, 0);
 }
 
-inline void operator delete[](void *ptr)
+inline void operator delete[](void *ptr) throw()
 {
 	if (ptr != NULL)
 		free_file_line(ptr, NULL, 0);