http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46203
Summary: constexpr weirdness w/ default ctors
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: b...@gcc.gnu.org
From trunk, get these additional fails.
FAIL: 23_containers/vector/ext_pointer/citerators.cc (test for excess errors)
FAIL: 29_atomics/atomic_address/cons/assign_neg.cc (test for excess errors)
FAIL: 29_atomics/atomic_address/cons/copy_neg.cc (test for excess errors)
FAIL: 29_atomics/atomic_address/cons/default.cc (test for excess errors)
FAIL: 29_atomics/atomic_flag/cons/assign_neg.cc (test for excess errors)
FAIL: 29_atomics/atomic_flag/cons/copy_neg.cc (test for excess errors)
FAIL: 29_atomics/atomic_flag/cons/default.cc (test for excess errors)
=== libstdc++ Summary ===
# of expected passes 7977
# of unexpected failures 7
# of expected failures 84
# of unsupported tests 100
Looking at
FAIL: 29_atomics/atomic_address/cons/default.cc,
I see:
In file included from
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/atomic:42:0,
from
/mnt/share/src/gcc.git-trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc:20:
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/atomic_base.h:
In constructor ‘constexpr std::__atomic_flag_base::__atomic_flag_base()’:
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/atomic_base.h:58:18:
error: uninitialized member ‘std::__atomic_flag_base::_M_i’ in ‘constexpr’
constructor
In file included from
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/atomic:81:0,
from
/mnt/share/src/gcc.git-trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc:20:
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/atomic_2.h:
In constructor ‘constexpr std::__atomic2::atomic_flag::atomic_flag()’:
/mnt/share/bld/gcc.git-trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/atomic_2.h:49:5:
note: synthesized method ‘std::__atomic_flag_base::__atomic_flag_base()’ first
required here
/mnt/share/src/gcc.git-trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc:
In function ‘int main()’:
/mnt/share/src/gcc.git-trunk/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc:25:44:
note: synthesized method ‘constexpr std::__atomic2::atomic_flag::atomic_flag()’
first required here
These default ctors are not constexpr.
