rb_big2str0       969 bignum.c           return rb_big2str0(x, base, 1);
rb_big2str0        91 include/ruby/intern.h VALUE rb_big2str0(VALUE, int, int);
rb_big2str0       853 sprintf.c      			tmp1 = tmp = rb_big2str0(val, base, RBIGNUM_SIGN(val));