[Bug c++/93155] Error when compiling Boost MP11 mp_similar

[tobias.loew at steag dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93155

--- Comment #2 from Tobias Loew <tobias.loew at steag dot com> ---
// here is a minimal example (extracted from boost/mp11/function.hpp)

template<class T>
struct s{};

template<class... T> struct mp_similar_impl;

template<class T> struct mp_similar_impl<T, T>
{
    using type = int;
};

// commenting the following specialization removes the error
template<template<class...> class L, class... T1, class... T2> struct
mp_similar_impl<L<T1...>, L<T2...>>
{
    using type = int;
};

int main(){
    mp_similar_impl<s<int>, s<int>>::type v;
}