https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111759
Bug ID: 111759
Summary: __FLT_HAS_INFINITY__ has value 1 even when
-ffinite-math-only is used.
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: Zahira.Ammarguellat at intel dot com
Target Milestone: ---
Not sure if this is a bug but would like community feedback.
In https://godbolt.org/z/fqMdqfM7n we see that __FLT_HAS_INFINITY__ is set to 1
even when -ffast-math and -ffinite-math-only are used. Shouldn't this be set to
0 in presence of these options?
In limits header:
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __FLT_HAS_INFINITY__;
That means the value of std::numeric_limits<float>::has_infinity will always be
1 even with -ffast-math and -ffinite-math-only. See
https://godbolt.org/z/M6W6Ejc7W
Is this acceptable?
Any feedback appreciated.
Thanks.
