/in/foo.c: In function 'main':
/in/foo.c:7:10: warning: 'a' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |        ~~^~~~~
/in/foo.c:5:11: note: 'a' was declared here
    5 |    int m, a ,b ,c;
      |           ^
/in/foo.c:7:20: warning: 'b' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |                  ~~^~~~
/in/foo.c:5:14: note: 'b' was declared here
    5 |    int m, a ,b ,c;
      |              ^
/in/foo.c:7:25: warning: 'c' is used uninitialized [-Wuninitialized]
    7 |    m = a * 100 + b * 10 + c;
      |        ~~~~~~~~~~~~~~~~~^~~
/in/foo.c:5:17: note: 'c' was declared here
    5 |    int m, a ,b ,c;
      |                 ^