UNIX网络编程第3章套接字编程简介3.2套接字地址结构3.3值结果参数3.4字节排序函数

#include<iostream>

#include"../lib/unpsunyj.h"

intmain(intargc,char**argv)

{

union{

shorts;

charc[sizeof(short)];

}un;

un.s=0x0103;

std::cout<<"un.s=:"<<un.s<<std::endl;

printf("%s:",CPU_VENDOR_OS);

if(sizeof(short)==2)

{

if(un.c[0]==1&&un.c[1]==3)

printf("big-endian\n");

elseif(un.c[0]==3&&un.c[1]==1)

printf("little-endian\n");

else

printf("unknown\n");

}

else

printf("sizeof(short)=%d\n",static_cast<int>(sizeof(short)));

return0;

}