endian.h

一个嵌入式C库

/* Sparc is big-endian, but v9 supports endian conversion on loads/stores
   and GCC supports such a mode.  Be prepared.  */

#ifndef _ENDIAN_H
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
#endif

#ifdef __LITTLE_ENDIAN__
# define __BYTE_ORDER __LITTLE_ENDIAN
#else
# define __BYTE_ORDER __BIG_ENDIAN
#endif