C/C++ 判断主机字节存储序列 

 1 #include<stdio.h>
 2 void check_endian()
 3 {
 4     union
 5     {
 6         short value;
 7         char union_bytes[sizeof(short)];
 8     }tester;
 9     tester.value = 0x0102;
10     if( (tester.union_bytes[0] == 1) && (tester.union_bytes[1] == 2))
11     {
12         printf("big endian\n");
13     }
14     else if( (tester.union_bytes[0] == 2) && (tester.union_bytes[1] == 1) )
15     {
16         printf("small endian\n");
17     }
18     else
19     {
20         printf("unknown\n");
21     }
22 }
23 int main(int argc,char *argv[])
24 {
25     check_endian();
26     return 0;
27 }

posted @ 2016-04-11 16:26  你好阿汤哥  Views(511)  Comments(0)  Edit  收藏  举报