https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87155
Bug ID: 87155
Summary: unnamed namespace redeclaration error when inline
namespace is present
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: artiom.yurol at ya dot ru
Target Milestone: ---
Created attachment 44631
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44631&action=edit
preprocessed file
namespace n1 {
namespace {}
inline namespace n2 {
namespace {}
}
namespace {}
}
This should compile just fine, but it doesn't. G++ rejects it reporting that
the extension of unnamed namespace at line 8 conflicts with the declaration at
line 2.
$ gcc ../playground.cpp
../playground.cpp:8:5: error: ‘namespace n1:: { }’ conflicts with a previous
declaration
namespace {}
^~~~~~~~~
../playground.cpp:2:5: note: previous declaration ‘namespace n1:: { }’
namespace {}
^~~~~~~~~
Clang-6.0 doesn't reject the code. Removing nested namespace n2 also fixes the
problem
