https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92049
Bug ID: 92049
Summary: bogus errors with -fchecking=2
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mpolacek at gcc dot gnu.org
Target Milestone: ---
Several tests fail with bogus errors, at least
g++.dg/cpp0x/constexpr-ctor12.C g++.dg/cpp0x/constexpr-ctor13.C
g++.dg/cpp0x/pr70538.C g++.dg/template/builtin1.C
g++.dg/template/non-dependent14.C g++.dg/template/typeid1.C
g++.dg/wrappers/pr83814.C
E.g.,
template<bool> struct cond;
template<int> struct S {
void f(int i) {
cond<__builtin_constant_p(i)>();
}
};
S<1> s;
$ ./cc1plus -quiet builtin1.C -fchecking=2
builtin1.C: In member function ‘void S<<anonymous> >::f(int)’:
builtin1.C:7:5: error: invalid use of incomplete type ‘struct cond<false>’
7 | cond<__builtin_constant_p(i)>();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
builtin1.C:3:23: note: declaration of ‘struct cond<false>’
3 | template<bool> struct cond;
| ^~~~
