foo.c: In function 'main':
foo.c:8:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
8 | gets(s1);gets(s2);
| ^~~~
In file included from /usr/include/stdio.h:867,
from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
235 | gets (char *__str)
| ^~~~
foo.c:8:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
8 | gets(s1);gets(s2);
| ^~~~
In file included from /usr/include/stdio.h:867,
from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
235 | gets (char *__str)
| ^~~~
foo.c:9:11: warning: variable 'len2' set but not used [-Wunused-but-set-variable]
9 | int len1,len2;
| ^~~~
foo.c: In function 'Concat':
foo.c:17:5: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
17 | if(*p1=*p2)
| ^
foo.c: In function 'main':
foo.c:8:2: warning: ignoring return value of 'gets', declared with attribute warn_unused_result [-Wunused-result]
8 | gets(s1);gets(s2);
| ^~~~~~~~
foo.c:8:11: warning: ignoring return value of 'gets', declared with attribute warn_unused_result [-Wunused-result]
8 | gets(s1);gets(s2);
| ^~~~~~~~
/usr/bin/ld: /tmp/ccuWC1VI.o: in function `main':
foo.c:(.text.startup+0x44): warning: the `gets' function is dangerous and should not be used.
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