Re: [PATCH] ldbl-128ibm: make ieee754.h work with IEEE 128 long double

[Tulio Magno Quites Machado Filho <tuliom at ascii dot art dot br>]

"Paul E. Murphy" <murphyp@linux.vnet.ibm.com> writes:

> Instead of attempting something more creative, just copy
> the small struct from ldbl-128 and enable it when IEEE
> long double is present, and update the ibm long double
> variant if supported.
>
> Likewise, provide a shadow copy of math_ldbl.h to prevent
> the ibm128 specific long double header from poisoning
> unrelated files due to it's usage in math_private.h.

LGTM with a cosmetic change.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>

> @@ -121,12 +181,16 @@ union ieee754_double
>     -0.0.  No other requirements are made; so, for example, 1.0 may be
>     represented as (1.0, +0.0) or (1.0, -0.0), and the low part of a
>     NaN is don't-care.  */
> -
>  union ibm_extended_long_double
>    {
> -    long double ld;
> +#if __LONG_DOUBLE_USES_FLOAT128 == 1 && __GNUC_PREREQ (7, 0)

This is missing an indentation, like the else and endif clauses below.

-- 
Tulio Magno