kstd_new.cpp File Reference

#include <cstddef>
#include <new>
#include "sk_stdlib.h"

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Functions
void *	operator new (size_t size)
void *	operator new[] (size_t size)
void *	operator new (size_t size, size_t alignment) noexcept
void *	operator new[] (size_t size, size_t alignment) noexcept
void *	operator new (size_t size, std::align_val_t alignment)
void *	operator new[] (size_t size, std::align_val_t alignment)
auto	operator delete (void *ptr) noexcept -> void
auto	operator delete (void *ptr, size_t) noexcept -> void
auto	operator delete[] (void *ptr) noexcept -> void
auto	operator delete[] (void *ptr, size_t) noexcept -> void
auto	operator delete (void *ptr, size_t, size_t) noexcept -> void
auto	operator delete[] (void *ptr, size_t, size_t) noexcept -> void
auto	operator delete (void *ptr, std::align_val_t) noexcept -> void
auto	operator delete[] (void *ptr, std::align_val_t) noexcept -> void
auto	operator delete (void *ptr, size_t, std::align_val_t) noexcept -> void
auto	operator delete[] (void *ptr, size_t, std::align_val_t) noexcept -> void

Function Documentation

operator delete() [1/5]

auto operator delete ( void *  ptr ) -> void

noexcept

Definition at line 68 of file kstd_new.cpp.

                                                 {
  if (ptr != nullptr) {
    free(ptr);
  }
}

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operator delete() [2/5]

auto operator delete ( void *  ptr, size_t    ) -> void

noexcept

Definition at line 74 of file kstd_new.cpp.

                                                         {
  if (ptr != nullptr) {
    free(ptr);
  }
}

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operator delete() [3/5]

auto operator delete ( void *  ptr, size_t  , size_t    ) -> void

noexcept

Definition at line 92 of file kstd_new.cpp.

                                                                 {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator delete() [4/5]

auto operator delete ( void *  ptr, size_t  , std::align_val_t    ) -> void

noexcept

Definition at line 116 of file kstd_new.cpp.

                                                                         {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator delete() [5/5]

auto operator delete ( void *  ptr, std::align_val_t    ) -> void

noexcept

Definition at line 104 of file kstd_new.cpp.

                                                                 {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator delete[]() [1/5]

auto operator delete[] ( void *  ptr ) -> void

noexcept

Definition at line 80 of file kstd_new.cpp.

                                                   {
  if (ptr != nullptr) {
    free(ptr);
  }
}

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operator delete[]() [2/5]

auto operator delete[] ( void *  ptr, size_t    ) -> void

noexcept

Definition at line 86 of file kstd_new.cpp.

                                                           {
  if (ptr != nullptr) {
    free(ptr);
  }
}

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operator delete[]() [3/5]

auto operator delete[] ( void *  ptr, size_t  , size_t    ) -> void

noexcept

Definition at line 98 of file kstd_new.cpp.

                                                                   {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator delete[]() [4/5]

auto operator delete[] ( void *  ptr, size_t  , std::align_val_t    ) -> void

noexcept

Definition at line 122 of file kstd_new.cpp.

                                                                           {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator delete[]() [5/5]

auto operator delete[] ( void *  ptr, std::align_val_t    ) -> void

noexcept

Definition at line 110 of file kstd_new.cpp.

                                                                   {
  if (ptr != nullptr) {
    aligned_free(ptr);
  }
}

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operator new() [1/3]

void * operator new

(

size_t

size

)

Copyright

Copyright The SimpleKernel Contributors

Definition at line 10 of file kstd_new.cpp.

                                {
  if (size == 0) {
    size = 1;
  }
  return malloc(size);
}

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operator new() [2/3]

void * operator new ( size_t  size, size_t  alignment  )

noexcept

Definition at line 24 of file kstd_new.cpp.

                                                           {
  if (size == 0) {
    size = 1;
  }
 
  // 确保对齐参数是 2 的幂
  if (alignment == 0 || (alignment & (alignment - 1)) != 0) {
    return nullptr;
  }
 
  // 如果对齐要求小于等于默认对齐，使用普通 malloc
  if (alignment <= alignof(std::max_align_t)) {
    return malloc(size);
  }
 
  return aligned_alloc(alignment, size);
}

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operator new() [3/3]

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

Definition at line 60 of file kstd_new.cpp.

                                                          {
  return operator new(size, static_cast<size_t>(alignment));
}

operator new[]() [1/3]

void * operator new[]

(

size_t

size

)

Definition at line 17 of file kstd_new.cpp.

                                  {
  if (size == 0) {
    size = 1;
  }
  return malloc(size);
}

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operator new[]() [2/3]

void * operator new[] ( size_t  size, size_t  alignment  )

noexcept

Definition at line 42 of file kstd_new.cpp.

                                                             {
  if (size == 0) {
    size = 1;
  }
 
  // 确保对齐参数是 2 的幂
  if (alignment == 0 || (alignment & (alignment - 1)) != 0) {
    return nullptr;
  }
 
  // 如果对齐要求小于等于默认对齐，使用普通 malloc
  if (alignment <= alignof(std::max_align_t)) {
    return malloc(size);
  }
 
  return aligned_alloc(alignment, size);
}

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operator new[]() [3/3]

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

Definition at line 64 of file kstd_new.cpp.

                                                            {
  return operator new[](size, static_cast<size_t>(alignment));
}