C语言实现字符串的反转输出

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

void reverse(char *src)
{
if(src == NULL)
exit(1);
char * p = src + strlen(src) - 1;
char tmp;
while( src < p)
{
tmp = *p;
*p-- = *src;
*src++ = tmp;
}
}

int main(void)
{
char str[32] = "hello world";
reverse(str);
printf("--- reverse : %s ---\n",str);
return 0;
}