figc.20

UNIX环境高级编程第二版（英文版）配书的源代码

#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>

int
main(void)
{
	uint32_t i;
	unsigned char *cp;

	i = 0x04030201;
	cp = (unsigned char *)&i;
	if (*cp == 1)
		printf("little-endian\n");
	else if (*cp == 4)
		printf("big-endian\n");
	else
		printf("who knows?\n");
	exit(0);
}