至少,我认为一些posix函数是由linux实现的。NAMESYNOPSIS
#include <sys/mman.hThe Linux implementation of this interface may differ (consult the corresponding Linux manual page fordetails of Linux</e
:每个未声明的标识符只报告一次它出现在
#include "/usr/include/x86_64-linux-gnu/sys/fcntl.h" /*chose one file out of several options available*/
include "/usr/include/x86_64-linux-gnu