// -*- 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

//

//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_NEW

#define _LIBCPP_NEW

/*

    new synopsis

namespace std

{

class bad_alloc

    : public exception

{

public:

    bad_alloc() noexcept;

    bad_alloc(const bad_alloc&) noexcept;

    bad_alloc& operator=(const bad_alloc&) noexcept;

    virtual const char* what() const noexcept;

};

class bad_array_new_length : public bad_alloc // C++14

{

public:

    bad_array_new_length() noexcept;

};

enum class align_val_t : size_t {}; // C++17

struct destroying_delete_t { // C++20

  explicit destroying_delete_t() = default;

};

inline constexpr destroying_delete_t destroying_delete{}; // C++20

struct nothrow_t { explicit nothrow_t() = default; };

extern const nothrow_t nothrow;

typedef void (*new_handler)();

new_handler set_new_handler(new_handler new_p) noexcept;

new_handler get_new_handler() noexcept;

// 21.6.4, pointer optimization barrier

template <class T> constexpr T* launder(T* p) noexcept; // C++17

}  // std

void* operator new(std::size_t size);                                   // replaceable, nodiscard in C++20

void* operator new(std::size_t size, std::align_val_t alignment);       // replaceable, C++17, nodiscard in C++20

void* operator new(std::size_t size, const std::nothrow_t&) noexcept;   // replaceable, nodiscard in C++20

void* operator new(std::size_t size, std::align_val_t alignment,

                   const std::nothrow_t&) noexcept;                     // replaceable, C++17, nodiscard in C++20

void  operator delete(void* ptr) noexcept;                              // replaceable

void  operator delete(void* ptr, std::size_t size) noexcept;            // replaceable, C++14

void  operator delete(void* ptr, std::align_val_t alignment) noexcept;  // replaceable, C++17

void  operator delete(void* ptr, std::size_t size,

                      std::align_val_t alignment) noexcept;             // replaceable, C++17

void  operator delete(void* ptr, const std::nothrow_t&) noexcept;       // replaceable

void  operator delete(void* ptr, std:align_val_t alignment,

                      const std::nothrow_t&) noexcept;                  // replaceable, C++17

void* operator new[](std::size_t size);                                 // replaceable, nodiscard in C++20

void* operator new[](std::size_t size,

                     std::align_val_t alignment) noexcept;              // replaceable, C++17, nodiscard in C++20

void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++20

void* operator new[](std::size_t size, std::align_val_t alignment,

                     const std::nothrow_t&) noexcept;                   // replaceable, C++17, nodiscard in C++20

void  operator delete[](void* ptr) noexcept;                            // replaceable

void  operator delete[](void* ptr, std::size_t size) noexcept;          // replaceable, C++14

void  operator delete[](void* ptr,

                        std::align_val_t alignment) noexcept;           // replaceable, C++17

void  operator delete[](void* ptr, std::size_t size,

                        std::align_val_t alignment) noexcept;           // replaceable, C++17

void  operator delete[](void* ptr, const std::nothrow_t&) noexcept;     // replaceable

void  operator delete[](void* ptr, std::align_val_t alignment,

                        const std::nothrow_t&) noexcept;                // replaceable, C++17

void* operator new  (std::size_t size, void* ptr) noexcept;             // nodiscard in C++20

void* operator new[](std::size_t size, void* ptr) noexcept;             // nodiscard in C++20

void  operator delete  (void* ptr, void*) noexcept;

void  operator delete[](void* ptr, void*) noexcept;

*/

#include <__assert> // all public C++ headers provide the assertion handler

#include <__availability>

#include <__config>

#include <__type_traits/is_function.h>

#include <__type_traits/is_same.h>

#include <__type_traits/remove_cv.h>

#include <cstddef>

#include <cstdlib>

#include <exception>

#include <version>

#if defined(_LIBCPP_ABI_VCRUNTIME)

#include <new.h>

#endif

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)

#  pragma GCC system_header

#endif

#if !defined(__cpp_sized_deallocation) || __cpp_sized_deallocation  < 201309L

#define _LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION

#endif

#if !defined(_LIBCPP_BUILDING_LIBRARY) && _LIBCPP_STD_VER < 14 && \

    defined(_LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION)

# define _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION

#endif

#if defined(_LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION) || \

    defined(_LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION)

# define _LIBCPP_HAS_NO_SIZED_DEALLOCATION

#endif

namespace std  // purposefully not using versioning namespace

{

#if !defined(_LIBCPP_ABI_VCRUNTIME)

struct _LIBCPP_TYPE_VIS nothrow_t { explicit nothrow_t() = default; };

extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;

class _LIBCPP_EXCEPTION_ABI bad_alloc

    : public exception

{

public:

    bad_alloc() _NOEXCEPT;

    ~bad_alloc() _NOEXCEPT override;

    const char* what() const _NOEXCEPT override;

};

class _LIBCPP_EXCEPTION_ABI bad_array_new_length

    : public bad_alloc

{

public:

    bad_array_new_length() _NOEXCEPT;

    ~bad_array_new_length() _NOEXCEPT override;

    const char* what() const _NOEXCEPT override;

};

typedef void (*new_handler)();

_LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;

_LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;

#elif defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0 // !_LIBCPP_ABI_VCRUNTIME

// When _HAS_EXCEPTIONS == 0, these complete definitions are needed,

// since they would normally be provided in vcruntime_exception.h

class bad_alloc : public exception {

public:

  bad_alloc() noexcept : exception("bad allocation") {}

private:

  friend class bad_array_new_length;

  bad_alloc(char const* const __message) noexcept : exception(__message) {}

};

class bad_array_new_length : public bad_alloc {

public:

  bad_array_new_length() noexcept : bad_alloc("bad array new length") {}

};

#endif // defined(_LIBCPP_ABI_VCRUNTIME) && defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0

_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc();  // not in C++ spec

_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY

void __throw_bad_array_new_length()

{

#ifndef _LIBCPP_NO_EXCEPTIONS

    throw bad_array_new_length();

#else

    _VSTD::abort();

#endif

}

#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) && \

    !defined(_LIBCPP_ABI_VCRUNTIME)

#ifndef _LIBCPP_CXX03_LANG

enum class _LIBCPP_ENUM_VIS align_val_t : size_t { };

#else

enum align_val_t { __zero = 0, __max = (size_t)-1 };

#endif

#endif

#if _LIBCPP_STD_VER > 17

// Enable the declaration even if the compiler doesn't support the language

// feature.

struct destroying_delete_t {

  explicit destroying_delete_t() = default;

};

inline constexpr destroying_delete_t destroying_delete{};

#endif // _LIBCPP_STD_VER > 17

} // namespace std

#if defined(_LIBCPP_CXX03_LANG)

#define _THROW_BAD_ALLOC throw(std::bad_alloc)

#else

#define _THROW_BAD_ALLOC

#endif

#if !defined(_LIBCPP_ABI_VCRUNTIME)

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p) _NOEXCEPT;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;

#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION

_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete(void* __p, std::size_t __sz) _NOEXCEPT;

#endif

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p) _NOEXCEPT;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;

#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION

_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;

#endif

#ifndef _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, std::align_val_t) _NOEXCEPT;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;

#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION

_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;

#endif

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;

_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, std::align_val_t) _NOEXCEPT;

_LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;

#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION

_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;

#endif

#endif

_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new  (std::size_t, void* __p) _NOEXCEPT {return __p;}

_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}

inline _LIBCPP_INLINE_VISIBILITY void  operator delete  (void*, void*) _NOEXCEPT {}

inline _LIBCPP_INLINE_VISIBILITY void  operator delete[](void*, void*) _NOEXCEPT {}

#endif // !_LIBCPP_ABI_VCRUNTIME

_LIBCPP_BEGIN_NAMESPACE_STD

_LIBCPP_CONSTEXPR inline _LIBCPP_INLINE_VISIBILITY bool __is_overaligned_for_new(size_t __align) _NOEXCEPT {

#ifdef __STDCPP_DEFAULT_NEW_ALIGNMENT__

  return __align > __STDCPP_DEFAULT_NEW_ALIGNMENT__;

#else

  return __align > alignment_of<max_align_t>::value;

#endif

}

template <class ..._Args>

_LIBCPP_INLINE_VISIBILITY

void* __libcpp_operator_new(_Args ...__args) {

#if __has_builtin(__builtin_operator_new) && __has_builtin(__builtin_operator_delete)

  return __builtin_operator_new(__args...);

#else

  return ::operator new(__args...);

#endif

}

Unexecuted instantiation: void* std::__1::__libcpp_operator_new[abi:v160006]<unsigned long, std::align_val_t>(unsigned long, std::align_val_t)

void* std::__1::__libcpp_operator_new[abi:v160006]<unsigned long>(unsigned long)

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void* __libcpp_operator_new(_Args ...__args) {

265

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#if __has_builtin(__builtin_operator_new) && __has_builtin(__builtin_operator_delete)

266

5.56M

  return __builtin_operator_new(__args...);

267

#else

268

  return ::operator new(__args...);

269

#endif

270

5.56M

}

template <class ..._Args>

_LIBCPP_INLINE_VISIBILITY

void __libcpp_operator_delete(_Args ...__args) {

#if __has_builtin(__builtin_operator_new) && __has_builtin(__builtin_operator_delete)

  __builtin_operator_delete(__args...);

#else

  ::operator delete(__args...);

#endif

}

Unexecuted instantiation: void std::__1::__libcpp_operator_delete[abi:v160006]<void*, std::align_val_t>(void*, std::align_val_t)

void std::__1::__libcpp_operator_delete[abi:v160006]<void*>(void*)

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void __libcpp_operator_delete(_Args ...__args) {

275

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#if __has_builtin(__builtin_operator_new) && __has_builtin(__builtin_operator_delete)

276

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  __builtin_operator_delete(__args...);

277

#else

278

  ::operator delete(__args...);

279

#endif

280

5.57M

}

inline _LIBCPP_INLINE_VISIBILITY

void *__libcpp_allocate(size_t __size, size_t __align) {

#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION

  if (__is_overaligned_for_new(__align)) {

    const align_val_t __align_val = static_cast<align_val_t>(__align);

    return __libcpp_operator_new(__size, __align_val);

  }

#endif

  (void)__align;

  return __libcpp_operator_new(__size);

}

template <class ..._Args>

_LIBCPP_INLINE_VISIBILITY

void __do_deallocate_handle_size(void *__ptr, size_t __size, _Args ...__args) {

#ifdef _LIBCPP_HAS_NO_SIZED_DEALLOCATION

  (void)__size;

  return std::__libcpp_operator_delete(__ptr, __args...);

#else

  return std::__libcpp_operator_delete(__ptr, __size, __args...);

#endif

}

Unexecuted instantiation: void std::__1::__do_deallocate_handle_size[abi:v160006]<std::align_val_t>(void*, unsigned long, std::align_val_t)

void std::__1::__do_deallocate_handle_size[abi:v160006]<>(void*, unsigned long)

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297

5.57M

void __do_deallocate_handle_size(void *__ptr, size_t __size, _Args ...__args) {

298

5.57M

#ifdef _LIBCPP_HAS_NO_SIZED_DEALLOCATION

299

5.57M

  (void)__size;

300

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  return std::__libcpp_operator_delete(__ptr, __args...);

301

#else

302

  return std::__libcpp_operator_delete(__ptr, __size, __args...);

303

#endif

304

5.57M

}

inline _LIBCPP_INLINE_VISIBILITY

void __libcpp_deallocate(void* __ptr, size_t __size, size_t __align) {

#if defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION)

    (void)__align;

    return __do_deallocate_handle_size(__ptr, __size);

#else

    if (__is_overaligned_for_new(__align)) {

      const align_val_t __align_val = static_cast<align_val_t>(__align);

      return __do_deallocate_handle_size(__ptr, __size, __align_val);

    } else {

      return __do_deallocate_handle_size(__ptr, __size);

    }

#endif

}

inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate_unsized(void* __ptr, size_t __align) {

#if defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION)

    (void)__align;

    return __libcpp_operator_delete(__ptr);

#else

    if (__is_overaligned_for_new(__align)) {

      const align_val_t __align_val = static_cast<align_val_t>(__align);

      return __libcpp_operator_delete(__ptr, __align_val);

    } else {

      return __libcpp_operator_delete(__ptr);

    }

#endif

}

#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION)

// Low-level helpers to call the aligned allocation and deallocation functions

// on the target platform. This is used to implement libc++'s own memory

// allocation routines -- if you need to allocate memory inside the library,

// chances are that you want to use `__libcpp_allocate` instead.

//

// Returns the allocated memory, or `nullptr` on failure.

inline _LIBCPP_INLINE_VISIBILITY void* __libcpp_aligned_alloc(std::size_t __alignment, std::size_t __size) {

#  if defined(_LIBCPP_MSVCRT_LIKE)

    return ::_aligned_malloc(__size, __alignment);

#  elif _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_C11_ALIGNED_ALLOC)

    // aligned_alloc() requires that __size is a multiple of __alignment,

    // but for C++ [new.delete.general], only states "if the value of an

    // alignment argument passed to any of these functions is not a valid

    // alignment value, the behavior is undefined".

    // To handle calls such as ::operator new(1, std::align_val_t(128)), we

    // round __size up to the next multiple of __alignment.

    size_t __rounded_size = (__size + __alignment - 1) & ~(__alignment - 1);

    // Rounding up could have wrapped around to zero, so we have to add another

    // max() ternary to the actual call site to avoid succeeded in that case.

    return ::aligned_alloc(__alignment, __size > __rounded_size ? __size : __rounded_size);

#  else

    void* __result = nullptr;

    (void)::posix_memalign(&__result, __alignment, __size);

    // If posix_memalign fails, __result is unmodified so we still return `nullptr`.

    return __result;

#  endif

}

inline _LIBCPP_INLINE_VISIBILITY

void __libcpp_aligned_free(void* __ptr) {

#if defined(_LIBCPP_MSVCRT_LIKE)

  ::_aligned_free(__ptr);

#else

  ::free(__ptr);

#endif

}

#endif // !_LIBCPP_HAS_NO_ALIGNED_ALLOCATION

template <class _Tp>

_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_HIDE_FROM_ABI

_LIBCPP_CONSTEXPR _Tp* __launder(_Tp* __p) _NOEXCEPT

{

    static_assert (!(is_function<_Tp>::value), "can't launder functions" );

    static_assert (!(is_same<void, __remove_cv_t<_Tp> >::value), "can't launder cv-void" );

    return __builtin_launder(__p);

}

#if _LIBCPP_STD_VER > 14

template <class _Tp>

_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_HIDE_FROM_ABI

constexpr _Tp* launder(_Tp* __p) noexcept

{

    return _VSTD::__launder(__p);

}

#endif

#if _LIBCPP_STD_VER > 14

#if defined(__GCC_DESTRUCTIVE_SIZE) && defined(__GCC_CONSTRUCTIVE_SIZE)

inline constexpr size_t hardware_destructive_interference_size = __GCC_DESTRUCTIVE_SIZE;

inline constexpr size_t hardware_constructive_interference_size = __GCC_CONSTRUCTIVE_SIZE;

#endif // defined(__GCC_DESTRUCTIVE_SIZE) && defined(__GCC_CONSTRUCTIVE_SIZE)

#endif // _LIBCPP_STD_VER > 14

_LIBCPP_END_NAMESPACE_STD

#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20

#  include <type_traits>

#endif

#endif // _LIBCPP_NEW