DBL_MIN_EXP        43 numeric.c      #ifndef DBL_MIN_EXP
DBL_MIN_EXP      3216 numeric.c          rb_define_const(rb_cFloat, "MIN_EXP", INT2FIX(DBL_MIN_EXP));
DBL_MIN_EXP      1084 rational.c         if ((e > DBL_MAX_EXP) || (e < DBL_MIN_EXP)) {