foo.c: In function 'main':
foo.c:6:5: warning: 'i' is used uninitialized [-Wuninitialized]
6 | char ab[i];
| ^~~~
foo.c:5:19: note: 'i' was declared here
5 | short x,y,i,o;
| ^
foo.c:20:18: warning: '*ab[0]' is used uninitialized [-Wuninitialized]
20 | if(ab[o]=='W')
| ~~^~~
foo.c:23:26: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized]
23 | y++;
| ~^~
foo.c:5:17: note: 'y' was declared here
5 | short x,y,i,o;
| ^
foo.c:21:26: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized]
21 | x++;
| ~^~
foo.c:5:15: note: 'x' was declared here
5 | short x,y,i,o;
| ^
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