foo.c: In function 'Length':
foo.c:13:16: warning: 'l' may be used uninitialized [-Wmaybe-uninitialized]
   13 |         return l;
      |                ^
foo.c:4:13: note: 'l' was declared here
    4 |         int l;
      |             ^
foo.c: In function 'main':
foo.c:46:9: warning: 'l' may be used uninitialized [-Wmaybe-uninitialized]
   46 |         Concat(a1, Length(a1), a2, Length(a2));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:4:13: note: 'l' was declared here
    4 |         int l;
      |             ^
foo.c:46:9: warning: 'l' may be used uninitialized [-Wmaybe-uninitialized]
   46 |         Concat(a1, Length(a1), a2, Length(a2));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:4:13: note: 'l' was declared here
    4 |         int l;
      |             ^

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