big2str_gmp      4963 bignum.c       big2str_gmp(VALUE x, int base)
big2str_gmp        36 ext/-test-/bignum/big2str.c big2str_gmp(VALUE x, VALUE vbase)
big2str_gmp        44 ext/-test-/bignum/big2str.c #define big2str_gmp rb_f_notimplement