/in/foo.c: In function 'Diff':
/in/foo.c:6:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
gets(s);
^~~~
In file included from /in/foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
^~~~
/in/foo.c:5:16: warning: unused variable 'k' [-Wunused-variable]
int i,m=0,n=0,k;
^
/in/foo.c: In function 'main':
/in/foo.c:18:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
gets(s1);
^~~~
In file included from /in/foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
^~~~
/in/foo.c:19:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
gets(s2);
^~~~
In file included from /in/foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
extern char *gets (char *__s) __wur __attribute_deprecated__;
^~~~
/in/foo.c:17:8: warning: unused variable 'b' [-Wunused-variable]
int a,b;
^
/in/foo.c:17:6: warning: unused variable 'a' [-Wunused-variable]
int a,b;
^
/tmp/ccS9gFD9.o: In function `Diff':
foo.c:(.text+0x5): warning: the `gets' function is dangerous and should not be used.