我的memcpy函数意外地打印了两次src

https://onlinegdb.com/B1OmLVB6D

我不确定为什么 src 变量在运行 memcpyByByte 函数后会打印两次。

int memcpyByByte(void* src, void* dest, size_t len) {
    char* srcC = (char*)src;
    char* destC = (char*)dest;
    
    for(int i = 0; i< len; i++){
        *(destC+i) = *(srcC+i);
    }
}

int main()
{
    char a[10] = "1234567890";
    char b[10] = "6b";

    memcpyByByte(&a, &b, sizeof(a));

    printf("src:  %sn", a);
    printf("dest: %s", b);

    return 0;
}

回答

char a[] = "1234567890";
char b[sizeof a] = "6g";