在没有memcpy的情况下连接两个内存缓冲区

#include<iostream>
#include <cstring>

void memcpy_manual(void* dest, const void* src, size_t count) {
    char* dest_ptr = static_cast<char*>(dest);
    const char* src_ptr = static_cast<const char*>(src);
    for (size_t i = 0; i< count; ++i) {
        dest_ptr[i] = src_ptr[i];
    }
}

int main() {
    char buffer1[] = "Hello, ";
    char buffer2[] = "world!";
    char result[13];

    memcpy_manual(result, buffer1, sizeof(buffer1));
    memcpy_manual(result + sizeof(buffer1), buffer2, sizeof(buffer2));

    std::cout<< result<< std::endl;

    return 0;
}