/in/foo.c:1:3: error: 'j' undeclared here (not in a function)
 t[j++]=s[i++];
   ^
/in/foo.c:1:1: warning: data definition has no type or storage class
 t[j++]=s[i++];
 ^
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 't' [-Wimplicit-int]
/in/foo.c:1:8: error: 's' undeclared here (not in a function)
 t[j++]=s[i++];
        ^
/in/foo.c:1:10: error: 'i' undeclared here (not in a function)
 t[j++]=s[i++];
          ^
/in/foo.c:2:13: error: expected identifier or '(' before 'for'
             for(;;i++)
             ^~~
/in/foo.c:2:20: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
             for(;;i++)
                    ^~