Skip to content

[Support] Remove trivial_helper, is_copy_assignable, and is_move_assignable #158007

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 11, 2025
Merged

[Support] Remove trivial_helper, is_copy_assignable, and is_move_assignable #158007

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
24 changes: 0 additions & 24 deletions llvm/include/llvm/Support/type_traits.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -56,30 +56,6 @@ template <typename T> struct const_pointer_or_const_ref {
typename add_const_past_pointer<T>::type, const T &>;
};

namespace detail {
template <class T> union trivial_helper {
T t;
};

} // namespace detail

template <typename T> struct is_copy_assignable {
template <class F>
static auto get(F *)
-> decltype(std::declval<F &>() = std::declval<const F &>(),
std::true_type{});
static std::false_type get(...);
static constexpr bool value = decltype(get((T *)nullptr))::value;
};

template <typename T> struct is_move_assignable {
template <class F>
static auto get(F *)
-> decltype(std::declval<F &>() = std::declval<F &&>(), std::true_type{});
static std::false_type get(...);
static constexpr bool value = decltype(get((T *)nullptr))::value;
};

} // namespace llvm

#endif // LLVM_SUPPORT_TYPE_TRAITS_H