read_sign        1643 complex.c      	read_sign(s, b);
read_sign        1683 complex.c          read_sign(s, b);
read_sign        1716 complex.c          sign = read_sign(s, b);
read_sign        1762 complex.c      	sign = read_sign(s, b);
read_sign        2227 rational.c     	expsign = read_sign(s);
read_sign        2276 rational.c         sign = read_sign(s);