https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101138
Bug ID: 101138
Summary: Ambiguous code (with operator==) compiled without
error
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: hiraditya at msn dot com
Target Milestone: ---
$ cat test.cpp
#include <iostream>
using namespace std;
template<typename T>
struct D {
template<typename Y> bool operator==(Y a) const {
cout << "f" <<endl;
return false;
}
};
template<typename T, class Y>
bool operator==(T a, D<Y> b) {
cout << "fD" <<endl;
return false;
}
int main()
{
D<struct ok> a, b;
if (a == b)
return 0;
return 1;
}
gcc compiles this code fine, bug clang errors out.
https://godbolt.org/z/c13EExxeY
