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From: "joseph at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/100854] TS 18661-3 and backwards-incompatible setting of
 __FLT_EVAL_METHOD__
Date: Tue, 01 Jun 2021 21:32:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100854

--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery =
dot com> ---
On Tue, 1 Jun 2021, acoplan at gcc dot gnu.org via Gcc-bugs wrote:

> This could be considered a bug in TS 18661-3 which stipulates that
> __FLT_EVAL_METHOD__ take backwards-incompatible values. Either way, it se=
ems

TS 18661-3 only talks about FLT_EVAL_METHOD, not __FLT_EVAL_METHOD__.=20=20
GCC's <float.h> then uses __FLT_EVAL_METHOD__,=20
__FLT_EVAL_METHOD_TS_18661_3__ and __STDC_WANT_IEC_60559_TYPES_EXT__ to=20
determine the value of FLT_EVAL_METHOD, taking account of any=20
-fpermitted-flt-eval-methods option (or other options implying it) passed.=