Eroare de compilare: user.c: In function 'read': user.c:16: error: 'for' loop initial declaration used outside C99 mode user.c: In function 'main': user.c:31: error: 'bool' undeclared (first use in this function) user.c:31: error: (Each undeclared identifier is reported only once user.c:31: error: for each function it appears in.) user.c:31: error: expected ';' before 'b' user.c:35: error: 'b' undeclared (first use in this function) user.c:35: error: 'false' undeclared (first use in this function) user.c:36: error: 'for' loop initial declaration used outside C99 mode user.c:38: error: 'true' undeclared (first use in this function)