cpp-mathmatic-vector/include/math/vector/traits.hpp

#pragma once

namespace math::vector {

template <typename T> struct is_vector {
  static const constexpr bool value = false;
};

template <typename T, std::size_t N> struct is_vector<vector<T, N>> {
  static const constexpr bool value = true;
};

template <typename T, std::size_t R, std::size_t C>
struct is_vector<matrix::matrix<T, R, C>> {
  static const constexpr bool value = true;
};

template <typename T> constexpr bool is_vector_v = is_vector<T>::value;
}