判断主机的字节序
yichen
posted @ 2014年4月25日 16:50
in Essay
, 872 阅读
#include <stdio.h>
typedef union
{
short s;
char c[sizeof(short)];
} Utool;
int main(int argc, char **argv)
{
Utool un;
un.s = 0x0102;
if(sizeof(short) == 2)
{
if(un.c[0]==1 && un.c[1]==2)
printf("big-endian\n");
else if(un.c[0]==2 && un.c[1]==1)
printf("little-endian\n");
else
printf("unknowable!\n");
}
return 0;
}
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