[Bug c++/111113] Cannot define friend function of a local class in namespace scope
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13 Language Lawyer changed: What|Removed |Added CC||language.lawyer at gmail dot com --- Comment #5 from Language Lawyer --- (In reply to Andrew Pinski from comment #3) > I think this is a dup of bug 101356. Looks dup to me too. Looks like GCC does not match friend function declaration with its namespace declaration.
[Bug c++/69701] "v.operator T()" incorrectly parsed if "v.T()" present.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69701
Language Lawyer changed:
What|Removed |Added
CC||language.lawyer at gmail dot
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--- Comment #7 from Language Lawyer ---
Another example related to CWG2396:
struct B
{
struct S {};
operator S();
};
auto v = B{}.operator struct S(); // error: 'struct B' has no member named
'operator S'
It can be checked that GCC injects unrelated `struct S` into the global
namespace and then tries to find `operator struct ::S` in B.
However, according to P1787R6 [basic.lookup.unqual]/5: An unqualified name that
is a component name of a type-specifier or ptr-operator of a conversion-type-id
is looked up in the same fashion as the conversion-function-id in which it
appears.
In an elaborated-type-specifier of the form "class-key identifier", such as
`struct S`, identifier is a component name ([dcl.type.elab]/1), so S shall be
searched in B first.
[Bug c++/51757] friend defined inside class and declared inside main linker error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51757 Language Lawyer changed: What|Removed |Added CC||language.lawyer at gmail dot com --- Comment #6 from Language Lawyer --- No linker error in GCC 11.0.0 20210117 (experimental) https://wandbox.org/permlink/EXabQxhTzbDzvbvr
