https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116168
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic,
| |ice-on-valid-code
Ever confirmed|0 |1
Last reconfirmed| |2024-08-01
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
clang reports:
```
<source>:25:18: error: cannot use builtin operator '<=>' because type
'std::partial_ordering' was not found; include <compare>
25 | auto a = 1.0 <=> 2.0;
| ^
```
MSVC reports:
```
<source>(25): error C7547: standard type 'std::partial_ordering' ill-formed:
member 'less' was not found
```
EDG reports:
```
"<source>", line 25: error: no valid std::strong_ordering type found (<compare>
must be included)
auto a = 1.0 <=> 2.0;
^
"<source>", line 25: error: no valid std::weak_ordering type found (<compare>
must be included)
auto a = 1.0 <=> 2.0;
^
"<source>", line 25: warning: variable "a" was declared but never referenced
auto a = 1.0 <=> 2.0;
^
```
I think only EDG error message is decent and correct here.
Ever other compiler rejects it for the wrong reason.
