https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86288
Bug ID: 86288
Summary: Recognize __gnu and/or __gnu__ as attribute-namespace
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
Libstdc++ can't use C++11 attribute syntax for GNU-specific attributes like
[[gnu::nonnull]], because those identifiers are not reserved names. We can use
__nonnull__ but only "gnu" is recognized for the namespace.
Could G++ be extended to also accept [[__gnu__::__nonnull__]] ?
__gnu__ doesn't seem to clash with anything predefined by GCC, or defined by
Glibc.
