os::estd::pmr::polymorphic_allocator< T > Class Template Reference

#include <memory_resource>

Public Types
typedef T	value_type

Public Member Functions
	polymorphic_allocator () noexcept
	polymorphic_allocator (memory_resource *r) noexcept
	polymorphic_allocator (polymorphic_allocator const &a)=default
template<typename U >
	polymorphic_allocator (polymorphic_allocator< U > const &other) noexcept
value_type *	allocate (std::size_t n)
void	deallocate (value_type *p, std::size_t n) noexcept
std::size_t	max_size (void) const noexcept
polymorphic_allocator &	operator= (polymorphic_allocator const &a)=default
memory_resource *	resource (void) const noexcept
polymorphic_allocator	select_on_container_copy_construction (void) const noexcept

Private Attributes
memory_resource *	res_

Detailed Description

template<typename T>
class os::estd::pmr::polymorphic_allocator< T >

Definition at line 120 of file memory_resource.

Member Typedef Documentation

value_type

template<typename T >

typedef T os::estd::pmr::polymorphic_allocator< T >::value_type

Definition at line 123 of file memory_resource.

Constructor & Destructor Documentation

polymorphic_allocator() [1/4]

template<typename T >

os::estd::pmr::polymorphic_allocator< T >::polymorphic_allocator

noexcept

Definition at line 190 of file memory_resource.

          : res_ (get_default_resource ())
      {
      }

polymorphic_allocator() [2/4]

template<typename T >

os::estd::pmr::polymorphic_allocator< T >::polymorphic_allocator ( memory_resource *  r )

inlinenoexcept

Definition at line 196 of file memory_resource.

          : res_ (r)
      {
      }

polymorphic_allocator() [3/4]

template<typename T >

os::estd::pmr::polymorphic_allocator< T >::polymorphic_allocator ( polymorphic_allocator< T > const &  a )

default

polymorphic_allocator() [4/4]

template<typename T >

template<typename U >

os::estd::pmr::polymorphic_allocator< T >::polymorphic_allocator ( polymorphic_allocator< U > const &  other )

inlinenoexcept

Definition at line 204 of file memory_resource.

          : res_ (other.resource ())
      {
      }

Member Function Documentation

allocate()

template<typename T >

polymorphic_allocator< T >::value_type * os::estd::pmr::polymorphic_allocator< T >::allocate ( std::size_t  n )

inline

Definition at line 212 of file memory_resource.

      {
        if (n > max_size ())
          {
            estd::__throw_system_error (
                EINVAL, "polymorphic_allocator<T>::allocate(std::size_t n)"
                        " 'n' exceeds maximum supported size");
          }
 
        return static_cast<value_type*> (
            res_->allocate (n * sizeof (value_type), alignof (value_type)));
      }

References os::rtos::memory::memory_resource::allocate().

deallocate()

template<typename T >

void os::estd::pmr::polymorphic_allocator< T >::deallocate ( value_type *  p, std::size_t  n  )

inlinenoexcept

Definition at line 227 of file memory_resource.

      {
        assert (n <= max_size ());
        res_->deallocate (p, n * sizeof (value_type), alignof (value_type));
      }

References os::rtos::memory::memory_resource::deallocate().

max_size()

template<typename T >

std::size_t os::estd::pmr::polymorphic_allocator< T >::max_size ( void  ) const

inlinenoexcept

Definition at line 236 of file memory_resource.

      {
        return std::numeric_limits<std::size_t>::max () / sizeof (value_type);
      }

operator=()

template<typename T >

polymorphic_allocator & os::estd::pmr::polymorphic_allocator< T >::operator= ( polymorphic_allocator< T > const &  a )

default

resource()

template<typename T >

memory_resource * os::estd::pmr::polymorphic_allocator< T >::resource ( void  ) const

inlinenoexcept

Definition at line 251 of file memory_resource.

      {
        return res_;
      }

select_on_container_copy_construction()

template<typename T >

polymorphic_allocator< T > os::estd::pmr::polymorphic_allocator< T >::select_on_container_copy_construction ( void  ) const

inlinenoexcept

Definition at line 243 of file memory_resource.

      {
        return polymorphic_allocator ();
      }

Member Data Documentation

res_

template<typename T >

memory_resource* os::estd::pmr::polymorphic_allocator< T >::res_

private

Definition at line 154 of file memory_resource.

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The documentation for this class was generated from the following file:

• memory_resource