int_round_zero_p  101 numeric.c      static int int_round_zero_p(VALUE num, int ndigits);
int_round_zero_p 1855 numeric.c          if (int_round_zero_p(num, ndigits)) {
int_round_zero_p 1887 numeric.c          if (int_round_zero_p(num, ndigits))
int_round_zero_p 1910 numeric.c          if (int_round_zero_p(num, ndigits))
int_round_zero_p 1935 numeric.c          if (int_round_zero_p(num, ndigits))