【C语言】编写函数实现字符串旋转

//编写函数实现字符串旋转
#include <stdio.h>
#include <assert.h>
#include <string.h>
void reverse(char *left, char *right)
{
char temp;
assert(left);
assert(right);
while (right > left)
{
temp = *left;
*left = *right;
*right = temp;
left++;
right--;
}
}
char *rotate(char *src, int n)
{
int len = strlen(src);
assert(src);
reverse(src, src + n-1);
reverse(src + n, src+len-1);
reverse(src, src + len - 1);
return src;
}
int main()
{
char p[] = "abcdef";
printf("%s\n", rotate(p, 2));
return 0;
}