foo.c: In function 'main':
foo.c:25:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   25 |     gets(s1);
      |     ^~~~
In file included from foo.c:1:
/nix/store/y8wfrgk7br5rfz4221lfb9v8w3n0cnyd-glibc-2.37-8-dev/include/stdio.h:605:14: note: declared here
  605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
foo.c:28:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   28 |    gets(s2);
      |    ^~~~
/nix/store/y8wfrgk7br5rfz4221lfb9v8w3n0cnyd-glibc-2.37-8-dev/include/stdio.h:605:14: note: declared here
  605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
foo.c:30:4: warning: comparison between pointer and integer
   30 |  s3==Length(s1,s2,s3);
      |    ^~
foo.c:30:4: warning: value computed is not used [-Wunused-value]
   30 |  s3==Length(s1,s2,s3);
      |  ~~^~~~~~~~~~~~~~~~~~
foo.c: In function 'Length':
foo.c:17:1: warning: control reaches end of non-void function [-Wreturn-type]
   17 | }
      | ^
/nix/store/74y3751gsixaz9797ib0hp7c658sp1y5-binutils-2.40/bin/ld: /tmp/ccNJ1u1F.o: in function `main':
foo.c:(.text.startup+0xb): warning: the `gets' function is dangerous and should not be used.

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