foo.c: In function 'main':
foo.c:7:9: warning: 'a' is used uninitialized [-Wuninitialized]
    7 |     int x=a,y=b;
      |         ^
foo.c:5:9: note: 'a' declared here
    5 |     int a,b;
      |         ^
foo.c:7:13: warning: 'b' is used uninitialized [-Wuninitialized]
    7 |     int x=a,y=b;
      |             ^
foo.c:5:11: note: 'b' declared here
    5 |     int a,b;
      |           ^

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