/in/foo.cc: In function 'int main()':
/in/foo.cc:7:10: warning: statement has no effect [-Wunused-value]
    7 |         x>=0;
      |         ~^~~
/in/foo.cc:8:10: warning: statement has no effect [-Wunused-value]
    8 |         y>=0;
      |         ~^~~
/in/foo.cc:9:10: warning: statement has no effect [-Wunused-value]
    9 |         x<=32767;
      |         ~^~~~~~~
/in/foo.cc:10:10: warning: statement has no effect [-Wunused-value]
   10 |         y<=32767;
      |         ~^~~~~~~