C-(指针)逆序

#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
#include<string.h>
#include<assert.h>
void reverse(char* str)
{
    assert(str); //断言 非0不报错
    int len = strlen(str);
    char* left = str;
    char* right = str + len - 1;

    while (left < right)
    {
        char tmp = *left;
        *left = *right;
        *right = tmp;
        left++;
        right--;
    }
}
int main()
{
    char arr[] = "abcdef";

    reverse(arr);

    printf("%s\n", arr);
    return 0;
}