title: How to use the write() system call in C++?
body: <p>I am a beginner in C++ and I want to know how to use the write() system call in C++ instead of using cout for my success and error messages.</p>
  
  <pre><code>#include &lt;iostream&gt;
  #include &lt;stdio.h&gt;
  using namespace std;
  
  int rename(const char *oldpath, const char *newpath);
  
  int main()
  {
    int result;
    char oldpath[] = "oldfile.cpp";
    char newpath[] = "newfile.cpp";
    result = rename(oldpath, newpath);
  
    if (result == 0)
      {
        cout &lt;&lt; "File renamed successfully\n";
      }
   else
      {
        cout &lt;&lt; "Error renaming the file\n";
      }
    return 0;
  }
  </code></pre>