util.h

00001 #ifndef UTIL_H
00002 #define UTIL_H
00003 
00004 #include "types.h"
00005 #include "log.h"
00006 
00007 /**
00008   \file util.h
00009   \brief Primary utility header
00010   
00011   In addition to providing some utility functions, this file also includes
00012   the other utility headers automatically.
00013 */
00014 
00015 /// Is any byte memory at start for bytes nonzero?
00016 inline bool is_nonzero_mem(u8 *start, unsigned int bytes)
00017 {
00018   for (; bytes--; ++start) if (*start) return true;
00019   return false;
00020 }
00021 
00022 /// Are all bytes at start for bytes zero?
00023 inline bool is_zero_mem(u8 *start, unsigned int bytes)
00024 {
00025   for (; bytes--; ++start) if (*start) return false;
00026   return true;
00027 }
00028 
00029 /// Are the memory locations at and and b equal for bytes?
00030 inline bool is_equal_mem(u8 *a, u8 *b, unsigned int bytes)
00031 {
00032   for (; bytes--; ++a, ++b) if (*a != *b) return false;
00033   return true;
00034 }
00035 
00036 #endif