foo.cc: In function 'int main()':
foo.cc:14:9: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  gets(s2); 
         ^
In file included from /usr/include/stdio.h:862:0,
                 from foo.cc:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:232:1: note: declared here
 gets (char *__str)
 ^~~~
foo.cc:15:9: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  gets(s1);
         ^
In file included from /usr/include/stdio.h:862:0,
                 from foo.cc:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:232:1: note: declared here
 gets (char *__str)
 ^~~~
foo.cc:14:6: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]
  gets(s2); 
  ~~~~^~~~
foo.cc:15:6: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result]
  gets(s1);
  ~~~~^~~~
/tmp/ccHW8GtQ.o: In function `main':
foo.cc:(.text.startup+0x2b): warning: the `gets' function is dangerous and should not be used.

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