libstdc++
Classes | Namespaces | Macros | Typedefs | Enumerations | Functions | Variables
new File Reference

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Classes

class  std::bad_alloc
 
struct  std::destroying_delete_t
 

Namespaces

 std
 

Macros

#define __cpp_lib_launder
 
#define _NEW
 

Typedefs

typedef void(* std::new_handler) ()
 

Enumerations

enum class  align_val_t : size_t
 

Functions

new_handler std::get_new_handler () noexcept
 
template<typename _Ret , typename... _Args>
void std::launder (_Ret(*)(_Args...))=delete
 
template<typename _Ret , typename... _Args>
void std::launder (_Ret(*)(_Args......))=delete
 
template<typename _Tp >
constexpr _Tp * std::launder (_Tp *__p) noexcept
 
void std::launder (const void *)=delete
 
void std::launder (const volatile void *)=delete
 
void std::launder (void *)=delete
 
void std::launder (volatile void *)=delete
 
void operator delete (void *) noexcept
 
void operator delete (void *, const std::nothrow_t &) noexcept
 
void operator delete (void *, std::align_val_t) noexcept
 
void operator delete (void *, std::align_val_t, const std::nothrow_t &) noexcept
 
void operator delete (void *, std::size_t) noexcept
 
void operator delete (void *, std::size_t, std::align_val_t) noexcept
 
void operator delete (void *, void *) noexcept
 
void operator delete[] (void *) noexcept
 
void operator delete[] (void *, const std::nothrow_t &) noexcept
 
void operator delete[] (void *, std::align_val_t) noexcept
 
void operator delete[] (void *, std::align_val_t, const std::nothrow_t &) noexcept
 
void operator delete[] (void *, std::size_t) noexcept
 
void operator delete[] (void *, std::size_t, std::align_val_t) noexcept
 
void operator delete[] (void *, void *) noexcept
 
void * operator new (std::size_t)
 
void * operator new (std::size_t, const std::nothrow_t &) noexcept
 
void * operator new (std::size_t, std::align_val_t)
 
void * operator new (std::size_t, std::align_val_t, const std::nothrow_t &) noexcept
 
void * operator new (std::size_t, void *__p) noexcept
 
void * operator new[] (std::size_t)
 
void * operator new[] (std::size_t, const std::nothrow_t &) noexcept
 
void * operator new[] (std::size_t, std::align_val_t)
 
void * operator new[] (std::size_t, std::align_val_t, const std::nothrow_t &) noexcept
 
void * operator new[] (std::size_t, void *__p) noexcept
 
new_handler std::set_new_handler (new_handler) throw ()
 

Variables

constexpr destroying_delete_t std::destroying_delete
 
const nothrow_t std::nothrow
 

Detailed Description

This is a Standard C++ Library header.

The header new defines several functions to manage dynamic memory and handling memory allocation errors; see https://gcc.gnu.org/onlinedocs/libstdc++/manual/dynamic_memory.html for more.

Definition in file new.

Function Documentation

◆ operator new()

void* operator new ( std::size_t  )

These are replaceable signatures:

  • normal single new and delete (no arguments, throw bad_alloc on error)
  • normal array new and delete (same)
  • nothrow single new and delete (take a nothrow argument, return NULL on error)
  • nothrow array new and delete (same)

Placement new and delete signatures (take a memory address argument, does nothing) may not be replaced by a user's program.