测试大小端

# include <stdio.h># include <string.h># include <assert.h># include <stdlib.h>int main(void){int a = 0xfafbfcfd;unsigned char *p = (unsigned char *)&a;printf("*p = %x\n", *p);return 0;}

# include <stdio.h># include <string.h># include <assert.h># include <stdlib.h>union {int a;char b;} test;int main(void){test.a = 1;if (test.b == 1)printf("Little_endian\n");elseprintf("Big_endian");return 0;}