https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93805
Bug ID: 93805
Summary: [8/9/10 Regression] A suspicious -Werror=noexcept
warning since r8-2461-g9fb82e652cee118b
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Since the revision I see quite a suspicious warning:
$ cat rast.ii
template <class T> class A {
public:
int m_fn1(T);
};
struct B {
B() {}
};
class C {
struct D {
B extents = B();
};
A<D> reflection_probe_owner;
int m_fn2();
};
int C::m_fn2() { return reflection_probe_owner.m_fn1(D()); }
$ g++ rast.ii -c -Werror=noexcept
rast.ii: In member function ‘int C::m_fn2()’:
rast.ii:15:56: error: noexcept-expression evaluates to ‘false’ because of a
call to ‘B::B()’ [-Werror=noexcept]
15 | int C::m_fn2() { return reflection_probe_owner.m_fn1(D()); }
| ^
rast.ii:6:3: error: but ‘B::B()’ does not throw; perhaps it should be declared
‘noexcept’ [-Werror=noexcept]
6 | B() {}
| ^
cc1plus: some warnings being treated as errors
