Compilare: user.c: In function ‘read’: user.c:52: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result user.c:53: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result user.c: In function ‘main’: user.c:115: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:116: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result In file included from /usr/include/stdio.h:910, from user.c:1: In function ‘fgets’, inlined from ‘read’ at user.c:52: /usr/include/bits/stdio2.h:253: warning: call to ‘__fgets_chk_warn’ declared with attribute warning: fgets called with bigger size than length of destination buffer In function ‘fgets’, inlined from ‘read’ at user.c:53: /usr/include/bits/stdio2.h:253: warning: call to ‘__fgets_chk_warn’ declared with attribute warning: fgets called with bigger size than length of destination buffer