在没有cstring的情况下比较C++中的字符数组和字符串文字

char str1[] = {'H', 'e', 'l', 'l', 'o', '\0'};

char* str2 = "Hello";

int strcmp(const char* str1, const char* str2);

#include<iostream>

int my_strcmp(const char* str1, const char* str2) {
    while (*str1 && *str2 && *str1 == *str2) {
        str1++;
        str2++;
    }
    return *str1 - *str2;
}

int main() {
    char str1[] = {'H', 'e', 'l', 'l', 'o', '\0'};
    char* str2 = "Hello";

    int result = my_strcmp(str1, str2);
    if (result == 0) {
        std::cout << "The two strings are equal."<< std::endl;
    } else if (result < 0) {
        std::cout << "The first string is less than the second string."<< std::endl;
    } else {
        std::cout << "The first string is greater than the second string."<< std::endl;
    }

    return 0;
}