Diff: util/util.h

Revision:

0:7e2eb93442e7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/util/util.h	Sun Dec 12 19:34:41 2010 +0000
@@ -0,0 +1,36 @@
+#ifndef UTIL_H
+#define UTIL_H
+
+#include "types.h"
+//#include "log.h"
+
+/**
+  \file util.h
+  \brief Primary utility header
+  
+  In addition to providing some utility functions, this file also includes
+  the other utility headers automatically.
+*/
+
+/// Is any byte memory at start for bytes nonzero?
+inline bool is_nonzero_mem(u8 *start, unsigned int bytes)
+{
+  for (; bytes--; ++start) if (*start) return true;
+  return false;
+}
+
+/// Are all bytes at start for bytes zero?
+inline bool is_zero_mem(u8 *start, unsigned int bytes)
+{
+  for (; bytes--; ++start) if (*start) return false;
+  return true;
+}
+
+/// Are the memory locations at and and b equal for bytes?
+inline bool is_equal_mem(u8 *a, u8 *b, unsigned int bytes)
+{
+  for (; bytes--; ++a, ++b) if (*a != *b) return false;
+  return true;
+}
+
+#endif
\ No newline at end of file