https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104503
Bug ID: 104503
Summary: [12 regression][modules] bits/shared_ptr_base.h:
error: must ‘#include <typeinfo>’ before using
‘typeid’
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: egor.pugin at gmail dot com
Target Milestone: ---
11.2.1 works fine.
#include <typeinfo> is present in include/c++/12.0.1/bits/shared_ptr_base.h
Repro:
cat << EOF > 1.cpp
export module m;
import <bits/stdc++.h>;
EOF
cat << EOF > 2.cpp
import m;
int main(){}
EOF
g++ -std=c++23 -fmodules-ts -x c++-system-header bits/stdc++.h
g++ -std=c++23 -fmodules-ts -c 1.cpp
g++ -std=c++23 -fmodules-ts -c 2.cpp
Error:
In file included from
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr.h:53,
from
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/memory:77,
from
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/x86_64-pc-linux-gnu/bits/stdc++.h:82,
of module
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/x86_64-pc-linux-gnu/bits/stdc++.h,
imported at 1.cpp:2,
of module m, imported at 2.cpp:1:
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:
In instantiation of ‘void* std::_Sp_counted_ptr_inplace<_Tp, _Alloc,
_Lp>::_M_get_deleter(const std::type_info&) [with _Tp = std::mutex; _Alloc =
std::allocator<void>; __gnu_cxx::_Lock_policy _Lp = __gnu_cxx::_S_atomic]’:
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:631:7:
required from here
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:641:21:
error: must ‘#include <typeinfo>’ before using ‘typeid’
62 | #include <ext/concurrence.h>
+++ |+#include <typeinfo>
63 | #if __cplusplus >= 202002L
......
641 | __ti == typeid(_Sp_make_shared_tag)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:
In instantiation of ‘void* std::_Sp_counted_ptr_inplace<_Tp, _Alloc,
_Lp>::_M_get_deleter(const std::type_info&) [with _Tp =
std::__future_base::_State_baseV2; _Alloc = std::allocator<void>;
__gnu_cxx::_Lock_policy _Lp = __gnu_cxx::_S_atomic]’:
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:631:7:
required from here
/home/egor/dev/gcc/build_debug/install/include/c++/12.0.1/bits/shared_ptr_base.h:641:21:
error: must ‘#include <typeinfo>’ before using ‘typeid’
Build:
Using built-in specs.
COLLECT_GCC=/home/egor/dev/gcc/build_debug/install/bin/g++
COLLECT_LTO_WRAPPER=/home/egor/dev/gcc/build_debug/install/libexec/gcc/x86_64-pc-linux-gnu/12.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --disable-multilib --disable-bootstrap
--prefix=/home/egor/dev/gcc/build_debug/install --disable-libsanitizer
--disable-gcov --disable-libgomp --disable-libquadmath --disable-libssp
--enable-languages=c,c++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.1 20220211 (experimental) (GCC)
