https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99274
Bug ID: 99274
Summary: [modules] Error when compiling some system headers as
modules after <iosfwd>
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: alexander.lelyakin at googlemail dot com
Target Milestone: ---
Some system headers cannot be compiled as a modules after you compile <ioswfd>
At least <future> and <complex>:
-----
g++ -std=c++20 -fmodules-ts -x c++-system-header iosfwd
g++ -std=c++20 -fmodules-ts -x c++-system-header future
-----
In file included from /usr/local/include/c++/11.0.1/string:43,
from /usr/local/include/c++/11.0.1/stdexcept:39,
from /usr/local/include/c++/11.0.1/system_error:41,
from /usr/local/include/c++/11.0.1/mutex:42,
from /usr/local/include/c++/11.0.1/future:38:
/usr/local/include/c++/11.0.1/bits/localefwd.h:156:74: error: wrong number of
template arguments (1, should be 2)
156 | template<typename _CharT, typename _InIter =
istreambuf_iterator<_CharT> >
|
^
.....
----
g++ -std=c++20 -fmodules-ts -x c++-system-header iosfwd
g++ -std=c++20 -fmodules-ts -x c++-system-header complex
----
In file included from /usr/local/include/c++/11.0.1/ios:41,
from /usr/local/include/c++/11.0.1/istream:38,
from /usr/local/include/c++/11.0.1/sstream:38,
from /usr/local/include/c++/11.0.1/complex:45:
/usr/local/include/c++/11.0.1/bits/localefwd.h:156:74: error: wrong number of
template arguments (1, should be 2)
156 | template<typename _CharT, typename _InIter =
istreambuf_iterator<_CharT> >
|
^
In file included from /usr/local/include/c++/11.0.1/bits/specfun.h:45,
from /usr/local/include/c++/11.0.1/cmath:1927,
from /usr/local/include/c++/11.0.1/complex:44:
/usr/local/include/c++/11.0.1/bits/stl_algobase.h:451:11: note: provided for
‘template<class _CharT, class _Traits> class std::istreambuf_iterator’
..........
