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Name	Size	Permission	Date
backward	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
bits	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
debug	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
decimal	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
experimental	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
ext	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
parallel	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
pstl	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
tr1	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
tr2	[ DIR ]	drwxr-xr-x	2025-04-08 16:44
algorithm	2.94 KB	-rw-r--r--	2023-01-08 09:12
any	18.38 KB	-rw-r--r--	2023-01-08 09:12
array	14.61 KB	-rw-r--r--	2023-01-08 09:12
atomic	46.67 KB	-rw-r--r--	2023-01-08 09:12
barrier	7.57 KB	-rw-r--r--	2023-01-08 09:12
bit	13.89 KB	-rw-r--r--	2023-01-08 09:12
bitset	44.92 KB	-rw-r--r--	2023-01-08 09:12
cassert	1.61 KB	-rw-r--r--	2023-01-08 09:12
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charconv	20.49 KB	-rw-r--r--	2023-01-08 09:12
chrono	58.31 KB	-rw-r--r--	2023-01-08 09:12
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clocale	1.86 KB	-rw-r--r--	2023-01-08 09:12
cmath	48.23 KB	-rw-r--r--	2023-01-08 09:12
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compare	36.77 KB	-rw-r--r--	2023-01-08 09:12
complex	54.63 KB	-rw-r--r--	2023-01-08 09:12
complex.h	1.56 KB	-rw-r--r--	2023-01-08 09:12
concepts	11.94 KB	-rw-r--r--	2023-01-08 09:12
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coroutine	9.58 KB	-rw-r--r--	2023-01-08 09:12
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cstdint	2.28 KB	-rw-r--r--	2023-01-08 09:12
cstdio	4.33 KB	-rw-r--r--	2023-01-08 09:12
cstdlib	6.18 KB	-rw-r--r--	2023-01-08 09:12
cstring	3.08 KB	-rw-r--r--	2023-01-08 09:12
ctgmath	1.33 KB	-rw-r--r--	2023-01-08 09:12
ctime	2.24 KB	-rw-r--r--	2023-01-08 09:12
cuchar	2.84 KB	-rw-r--r--	2023-01-08 09:12
cwchar	6.39 KB	-rw-r--r--	2023-01-08 09:12
cwctype	2.73 KB	-rw-r--r--	2023-01-08 09:12
cxxabi.h	21.76 KB	-rw-r--r--	2023-01-08 09:12
deque	4.35 KB	-rw-r--r--	2023-01-08 09:12
exception	5.29 KB	-rw-r--r--	2023-01-08 09:12
execution	1.76 KB	-rw-r--r--	2023-01-08 09:12
expected	33.11 KB	-rw-r--r--	2023-01-08 09:12
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filesystem	1.61 KB	-rw-r--r--	2023-01-08 09:12
forward_list	2.63 KB	-rw-r--r--	2023-01-08 09:12
fstream	39.73 KB	-rw-r--r--	2023-01-08 09:12
functional	42.3 KB	-rw-r--r--	2023-01-08 09:12
future	51.12 KB	-rw-r--r--	2023-01-08 09:12
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iostream	2.63 KB	-rw-r--r--	2023-01-08 09:12
istream	33.3 KB	-rw-r--r--	2023-01-08 09:12
iterator	2.69 KB	-rw-r--r--	2023-01-08 09:12
latch	2.67 KB	-rw-r--r--	2023-01-08 09:12
limits	70.04 KB	-rw-r--r--	2023-01-08 09:12
list	3.57 KB	-rw-r--r--	2023-01-08 09:12
locale	1.45 KB	-rw-r--r--	2023-01-08 09:12
map	4.04 KB	-rw-r--r--	2023-01-08 09:12
math.h	4.47 KB	-rw-r--r--	2023-01-08 09:12
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optional	43.4 KB	-rw-r--r--	2023-01-08 09:12
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queue	2.41 KB	-rw-r--r--	2023-01-08 09:12
random	1.65 KB	-rw-r--r--	2023-01-08 09:12
ranges	117.31 KB	-rw-r--r--	2023-01-08 09:12
ratio	19.81 KB	-rw-r--r--	2023-01-08 09:12
regex	3.04 KB	-rw-r--r--	2023-01-08 09:12
scoped_allocator	17.24 KB	-rw-r--r--	2023-01-08 09:12
semaphore	2.93 KB	-rw-r--r--	2023-01-08 09:12
set	3.9 KB	-rw-r--r--	2023-01-08 09:12
shared_mutex	24.02 KB	-rw-r--r--	2023-01-08 09:12
source_location	2.68 KB	-rw-r--r--	2023-01-08 09:12
span	12.82 KB	-rw-r--r--	2023-01-08 09:12
spanstream	12.07 KB	-rw-r--r--	2023-01-08 09:12
sstream	38.31 KB	-rw-r--r--	2023-01-08 09:12
stack	2.33 KB	-rw-r--r--	2023-01-08 09:12
stacktrace	21.02 KB	-rw-r--r--	2023-01-08 09:12
stdatomic.h	3.97 KB	-rw-r--r--	2023-01-08 09:12
stdexcept	9.65 KB	-rw-r--r--	2023-01-08 09:12
stdlib.h	2.2 KB	-rw-r--r--	2023-01-08 09:12
stop_token	15.61 KB	-rw-r--r--	2023-01-08 09:12
streambuf	29.19 KB	-rw-r--r--	2023-01-08 09:12
string	4.69 KB	-rw-r--r--	2023-01-08 09:12
string_view	25.55 KB	-rw-r--r--	2023-01-08 09:12
syncstream	8.13 KB	-rw-r--r--	2023-01-08 09:12
system_error	14.65 KB	-rw-r--r--	2023-01-08 09:12
tgmath.h	1.33 KB	-rw-r--r--	2023-01-08 09:12
thread	6.68 KB	-rw-r--r--	2023-01-08 09:12
tuple	61.37 KB	-rw-r--r--	2023-01-08 09:12
type_traits	107.81 KB	-rw-r--r--	2023-01-08 09:12
typeindex	3.43 KB	-rw-r--r--	2023-01-08 09:12
typeinfo	8.11 KB	-rw-r--r--	2023-01-08 09:12
unordered_map	3.62 KB	-rw-r--r--	2023-01-08 09:12
unordered_set	3.48 KB	-rw-r--r--	2023-01-08 09:12
utility	6.89 KB	-rw-r--r--	2023-01-08 09:12
valarray	39.82 KB	-rw-r--r--	2023-01-08 09:12
variant	63.95 KB	-rw-r--r--	2023-01-08 09:12
vector	4.7 KB	-rw-r--r--	2023-01-08 09:12
version	10.98 KB	-rw-r--r--	2023-01-08 09:12

Rename

// <coroutine> -*- C++ -*-

// Copyright (C) 2019-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library 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, or (at your option)
// any later version.

// This library 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file include/coroutine
 *  This is a Standard C++ Library header.
 */

#ifndef _GLIBCXX_COROUTINE
#define _GLIBCXX_COROUTINE 1

#pragma GCC system_header

// It is very likely that earlier versions would work, but they are untested.
#if __cplusplus >= 201402L

#include <type_traits>
#if __cplusplus > 201703L
# include <compare>
#endif

#if !defined __cpp_lib_three_way_comparison && _GLIBCXX_HOSTED
# include <bits/stl_function.h> // for std::less
#endif

/**
 * @defgroup coroutines Coroutines
 *
 * Components for supporting coroutine implementations.
 *
 * @since C++20 (and since C++14 as a libstdc++ extension)
 */

namespace std _GLIBCXX_VISIBILITY (default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

#if __cpp_impl_coroutine

#define __cpp_lib_coroutine 201902L

inline namespace __n4861 {

// C++20 17.12.2 coroutine traits
  /// [coroutine.traits]
  /// [coroutine.traits.primary]
  /// If _Result::promise_type is valid and denotes a type then the traits
  /// have a single publicly accessible member, otherwise they are empty.
  template <typename _Result, typename... _ArgTypes>
    struct coroutine_traits;

template <typename _Result, typename = void>
   struct __coroutine_traits_impl {};

template <typename _Result>
#if __cpp_concepts
    requires requires { typename _Result::promise_type; }
    struct __coroutine_traits_impl<_Result, void>
#else
    struct __coroutine_traits_impl<_Result,
				   __void_t<typename _Result::promise_type>>
#endif
    {
      using promise_type = typename _Result::promise_type;
    };

template <typename _Result, typename... _ArgTypes>
    struct coroutine_traits : __coroutine_traits_impl<_Result> {};

// C++20 17.12.3 Class template coroutine_handle
  /// [coroutine.handle]
  template <typename _Promise = void>
    struct coroutine_handle;

template <> struct
    coroutine_handle<void>
    {
    public:
      // [coroutine.handle.con], construct/reset
      constexpr coroutine_handle() noexcept : _M_fr_ptr(0) {}

constexpr coroutine_handle(std::nullptr_t __h) noexcept
	: _M_fr_ptr(__h)
      {}

coroutine_handle& operator=(std::nullptr_t) noexcept
      {
	_M_fr_ptr = nullptr;
	return *this;
      }

public:
      // [coroutine.handle.export.import], export/import
      constexpr void* address() const noexcept { return _M_fr_ptr; }

constexpr static coroutine_handle from_address(void* __a) noexcept
      {
	coroutine_handle __self;
	__self._M_fr_ptr = __a;
	return __self;
      }

public:
      // [coroutine.handle.observers], observers
      constexpr explicit operator bool() const noexcept
      {
	return bool(_M_fr_ptr);
      }

bool done() const noexcept { return __builtin_coro_done(_M_fr_ptr); }

// [coroutine.handle.resumption], resumption
      void operator()() const { resume(); }

void resume() const { __builtin_coro_resume(_M_fr_ptr); }

void destroy() const { __builtin_coro_destroy(_M_fr_ptr); }

protected:
      void* _M_fr_ptr;
  };

// [coroutine.handle.compare], comparison operators

constexpr bool
  operator==(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return __a.address() == __b.address();
  }

#ifdef __cpp_lib_three_way_comparison
  constexpr strong_ordering
  operator<=>(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return std::compare_three_way()(__a.address(), __b.address());
  }
#else
  // These are to enable operation with std=c++14,17.
  constexpr bool
  operator!=(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return !(__a == __b);
  }

constexpr bool
  operator<(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
#if _GLIBCXX_HOSTED
    return less<void*>()(__a.address(), __b.address());
#else
    return (__UINTPTR_TYPE__)__a.address() < (__UINTPTR_TYPE__)__b.address();
#endif
  }

constexpr bool
  operator>(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return __b < __a;
  }

constexpr bool
  operator<=(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return !(__a > __b);
  }

constexpr bool
  operator>=(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
  {
    return !(__a < __b);
  }
#endif

template <typename _Promise>
    struct coroutine_handle
    {
      // [coroutine.handle.con], construct/reset

constexpr coroutine_handle() noexcept { }

constexpr coroutine_handle(nullptr_t) noexcept { }

static coroutine_handle
      from_promise(_Promise& __p)
      {
	coroutine_handle __self;
	__self._M_fr_ptr
	  = __builtin_coro_promise((char*) &__p, __alignof(_Promise), true);
	return __self;
      }

coroutine_handle& operator=(nullptr_t) noexcept
      {
	_M_fr_ptr = nullptr;
	return *this;
      }

// [coroutine.handle.export.import], export/import

constexpr void* address() const noexcept { return _M_fr_ptr; }

constexpr static coroutine_handle from_address(void* __a) noexcept
      {
	coroutine_handle __self;
	__self._M_fr_ptr = __a;
	return __self;
      }

// [coroutine.handle.conv], conversion
      constexpr operator coroutine_handle<>() const noexcept
      { return coroutine_handle<>::from_address(address()); }

// [coroutine.handle.observers], observers
      constexpr explicit operator bool() const noexcept
      {
	return bool(_M_fr_ptr);
      }

bool done() const noexcept { return __builtin_coro_done(_M_fr_ptr); }

// [coroutine.handle.resumption], resumption
      void operator()() const { resume(); }

void resume() const { __builtin_coro_resume(_M_fr_ptr); }

void destroy() const { __builtin_coro_destroy(_M_fr_ptr); }

// [coroutine.handle.promise], promise access
      _Promise& promise() const
      {
	void* __t
	  = __builtin_coro_promise (_M_fr_ptr, __alignof(_Promise), false);
	return *static_cast<_Promise*>(__t);
      }

private:
      void* _M_fr_ptr = nullptr;
    };

/// [coroutine.noop]
  struct noop_coroutine_promise
  {
  };

// 17.12.4.1 Class noop_coroutine_promise
  /// [coroutine.promise.noop]
  template <>
    struct coroutine_handle<noop_coroutine_promise>
    {
      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 3460. Unimplementable noop_coroutine_handle guarantees
      // [coroutine.handle.noop.conv], conversion
      constexpr operator coroutine_handle<>() const noexcept
      { return coroutine_handle<>::from_address(address()); }

// [coroutine.handle.noop.observers], observers
      constexpr explicit operator bool() const noexcept { return true; }

constexpr bool done() const noexcept { return false; }

// [coroutine.handle.noop.resumption], resumption
      void operator()() const noexcept {}

void resume() const noexcept {}

void destroy() const noexcept {}

// [coroutine.handle.noop.promise], promise access
      noop_coroutine_promise& promise() const noexcept
      { return _S_fr.__p; }

// [coroutine.handle.noop.address], address
      constexpr void* address() const noexcept { return _M_fr_ptr; }

private:
      friend coroutine_handle noop_coroutine() noexcept;

struct __frame
      {
	static void __dummy_resume_destroy() { }

void (*__r)() = __dummy_resume_destroy;
	void (*__d)() = __dummy_resume_destroy;
	struct noop_coroutine_promise __p;
      };

static __frame _S_fr;

explicit coroutine_handle() noexcept = default;

void* _M_fr_ptr = &_S_fr;
    };

using noop_coroutine_handle = coroutine_handle<noop_coroutine_promise>;

inline noop_coroutine_handle::__frame
  noop_coroutine_handle::_S_fr{};

inline noop_coroutine_handle noop_coroutine() noexcept
  {
    return noop_coroutine_handle();
  }

// 17.12.5 Trivial awaitables
  /// [coroutine.trivial.awaitables]
  struct suspend_always
  {
    constexpr bool await_ready() const noexcept { return false; }

constexpr void await_suspend(coroutine_handle<>) const noexcept {}

constexpr void await_resume() const noexcept {}
  };

struct suspend_never
  {
    constexpr bool await_ready() const noexcept { return true; }

constexpr void await_suspend(coroutine_handle<>) const noexcept {}

constexpr void await_resume() const noexcept {}
  };

} // namespace __n4861

#if _GLIBCXX_HOSTED
  template<typename _Tp> struct hash;

template<typename _Promise>
    struct hash<coroutine_handle<_Promise>>
    {
      size_t
      operator()(const coroutine_handle<_Promise>& __h) noexcept
      {
	return reinterpret_cast<size_t>(__h.address());
      }
    };
#endif

#else
#error "the coroutine header requires -fcoroutines"
#endif

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif // C++14 (we are allowing use from at least this)

#endif // _GLIBCXX_COROUTINE