DBL_MIN_EXP        24 missing/nextafter.c         x1 = ldexp(0.5, DBL_MIN_EXP - DBL_MANT_DIG + 1);
DBL_MIN_EXP        63 missing/nextafter.c     if (e < DBL_MIN_EXP) {
DBL_MIN_EXP        64 missing/nextafter.c         d = ldexp(d, DBL_MIN_EXP-e);
DBL_MIN_EXP        41 numeric.c      #ifndef DBL_MIN_EXP
DBL_MIN_EXP      5119 numeric.c          rb_define_const(rb_cFloat, "MIN_EXP", INT2FIX(DBL_MIN_EXP));