/in/foo.cc: In function 'int FindMaxNeg(int*, int)':
/in/foo.cc:20:8: warning: 'max' may be used uninitialized [-Wmaybe-uninitialized]
   20 | return max;
      |        ^~~
/in/foo.cc:6:5: note: 'max' was declared here
    6 | int max;
      |     ^~~