foo.cc: In function 'int main()':
foo.cc:46:33: warning: 'sty' may be used uninitialized [-Wmaybe-uninitialized]
   46 |                         int stx,sty;
      |                                 ^~~
foo.cc:46:29: warning: 'stx' may be used uninitialized [-Wmaybe-uninitialized]
   46 |                         int stx,sty;
      |                             ^~~

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