DBL_EXP_BIAS       57 maint/gnulib/lib/integer_length.c #  define DBL_EXP_BIAS (DBL_EXP_MASK / 2 - 1)
DBL_EXP_BIAS      652 maint/gnulib/lib/vasnprintf.c #   define DBL_EXP_BIAS (DBL_EXP_MASK / 2 - 1)