foo.cc: In function 'int main(int, char**)':
foo.cc:313:13: warning: unused variable 'nNowYear' [-Wunused-variable]
  313 |         int nNowYear = 0, nNowMonth = 0, nNowDay = 0;
      |             ^~~~~~~~
foo.cc:313:27: warning: unused variable 'nNowMonth' [-Wunused-variable]
  313 |         int nNowYear = 0, nNowMonth = 0, nNowDay = 0;
      |                           ^~~~~~~~~
foo.cc:313:42: warning: unused variable 'nNowDay' [-Wunused-variable]
  313 |         int nNowYear = 0, nNowMonth = 0, nNowDay = 0;
      |                                          ^~~~~~~
foo.cc:314:13: warning: unused variable 'nNowHour' [-Wunused-variable]
  314 |         int nNowHour = 0, nNowMinute = 0, nNowSecond = 0;
      |             ^~~~~~~~
foo.cc:314:27: warning: unused variable 'nNowMinute' [-Wunused-variable]
  314 |         int nNowHour = 0, nNowMinute = 0, nNowSecond = 0;
      |                           ^~~~~~~~~~
foo.cc:314:43: warning: unused variable 'nNowSecond' [-Wunused-variable]
  314 |         int nNowHour = 0, nNowMinute = 0, nNowSecond = 0;
      |                                           ^~~~~~~~~~
foo.cc:315:13: warning: unused variable 'nAddSecond' [-Wunused-variable]
  315 |         int nAddSecond = 0;
      |             ^~~~~~~~~~

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