rb_int_mul       3707 enum.c                 a = rb_int_mul(a, rb_int_plus(end, beg));
rb_int_mul       5036 numeric.c          rb_define_method(rb_cInteger, "*", rb_int_mul, 1);
rb_int_mul       1071 sprintf.c      		    num = rb_int_mul(num, rb_int_positive_pow(10, prec));