https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59480
--- Comment #14 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Another testcase that we want to accept:
class Matrix;
void rot90 (const Matrix& a, int k = 1) { }
class Matrix {
friend void rot90 (const Matrix&, int);
};
void rot90 (const Matrix& a, int k);
We handle the third occurrence of rot90 as-if the second occurrence in:
class Matrix {
friend void rot90 (const Matrix&, int k = 1) { }
};
void rot90 (const Matrix& a, int k);
and of course we would reject it with my first try.
