From e3c4c7709f65404bcf8ce195a518e7d445e768d2 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Mon, 2 Nov 2026 02:07:38 +0800
Subject: Restructure libbase and RCCCore build

---
 .../include/CoreLib/ADT/STLFunctionalExtras.h      | 112 ---------------------
 1 file changed, 112 deletions(-)
 delete mode 100644 libsupport/include/CoreLib/ADT/STLFunctionalExtras.h

(limited to 'libsupport/include/CoreLib/ADT/STLFunctionalExtras.h')

diff --git a/libsupport/include/CoreLib/ADT/STLFunctionalExtras.h b/libsupport/include/CoreLib/ADT/STLFunctionalExtras.h
deleted file mode 100644
index 993acc0..0000000
--- a/libsupport/include/CoreLib/ADT/STLFunctionalExtras.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- R *CC-Project
-
- Copyright (C) 2026 Richard Qin
-
- This file is part of RCC-Project.
-
- RCC-Project is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your option) any
- later version.
-
- RCC-Project is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- RCC-Project; see the file COPYING.  If not see
- <http://www.gnu.org/licenses/>.
- */
-
-//===- llvm/ADT/STLFunctionalExtras.h - Extras for <functional> -*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains some extension to <functional>.
-//
-// No library is required when using these functions.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef RCC_ADT_STLFUNCTIONALEXTRAS_H
-#define RCC_ADT_STLFUNCTIONALEXTRAS_H
-
-#include "CoreLib/Compiler/Compiler.h"
-
-#include <cstddef
-#include <cstdint>
-#include <type_traits>
-#include <utility>
-
-namespace rcc
-{
-
-//===----------------------------------------------------------------------===//
-//     Extra additions to <functional>
-//===----------------------------------------------------------------------===//
-
-/// An efficient, type-erasing, non-owning reference to a callable. This is
-/// intended for use as the type of a function parameter that is not used
-/// after the function in question returns.
-///
-/// This class does not own the callable, so it is not in general safe to store
-/// a function_ref.
-template <typename Fn> class function_ref;
-
-template <typename Ret, typename... Params>
-class RCC_GSL_POINTER function_ref<Ret (Params...)>
-{
-  Ret (*callback) (intptr_t callable, Params... params) = nullptr;
-  intptr_t callable = 0;
-
-  template <typename Callable>
-  static Ret
-  callback_fn (intptr_t callable, Params... params)
-  {
-    return (*reinterpret_cast<Callable *> (callable)) (
-        std::forward<Params> (params)...);
-  }
-
-public:
-  function_ref () = default;
-  function_ref (std::nullptr_t)
-  {
-  }
-
-  template <typename Callable>
-  function_ref (
-      Callable &&callable RCC_LIFETIME_BOUND,
-      // This is not the copy-constructor.
-      std::enable_if_t<!std::is_same<std::remove_cvref_t<Callable>,
-                                     function_ref>::value> * = nullptr,
-      // Functor must be callable and return a suitable type.
-      std::enable_if_t<std::is_void<Ret>::value ||
-                       std::is_convertible<decltype (std::declval<Callable> () (
-                                               std::declval<Params> ()...)),
-                                           Ret>::value> * = nullptr)
-      : callback (callback_fn<std::remove_reference_t<Callable>>),
-        callable (reinterpret_cast<intptr_t> (&callable))
-  {
-  }
-
-  Ret
-  operator() (Params... params) const
-  {
-    return callback (callable, std::forward<Params> (params)...);
-  }
-
-  explicit
-  operator bool () const
-  {
-    return callback;
-  }
-};
-
-} // end namespace rcc
-
-#endif // RCC_ADT_STLFUNCTIONALEXTRAS_H
-- 
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