/in/foo.cc: In function 'int main()':
/in/foo.cc:18:2: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  gets(fbi);
  ^~~~
In file included from /in/foo.cc:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.cc:18:10: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  gets(fbi);
          ^
In file included from /in/foo.cc:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.cc:20:7: warning: variable 'T' set but not used [-Wunused-but-set-variable]
  char T;
       ^
/tmp/ccL2QwOX.o: In function `main':
foo.cc:(.text.startup+0x40): warning: the `gets' function is dangerous and should not be used.