std::pmr::operator==, std::pmr::operator!=

 

C++

Language

Standard library headers

Concepts

Utilities library

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Regular expressions library (C++11)

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Technical Specifications

 

Dynamic memory management

Smart pointers unique_ptr (C++11) shared_ptr (C++11) weak_ptr (C++11) auto_ptr (until C++17) owner_less (C++11) enable_shared_from_this (C++11) bad_weak_ptr (C++11) default_delete (C++11) Allocators allocator allocator_traits (C++11) allocator_arg_t (C++11) allocator_arg (C++11) uses_allocator (C++11) scoped_allocator_adaptor (C++11) pmr::polymorphic_allocator (C++17) Memory resources pmr::memory_resource (C++17) pmr::get_default_resource (C++17) pmr::set_default_resource (C++17) pmr::new_delete_resource (C++17) pmr::null_memory_resource (C++17) pmr::synchronized_pool_resource (C++17) pmr::unsynchronized_pool_resource (C++17) pmr::monotonic_buffer_resource (C++17) pmr::pool_options (C++17)

Uninitialized storage uninitialized_copy uninitialized_copy_n (C++11) uninitialized_fill uninitialized_fill_n raw_storage_iterator get_temporary_buffer return_temporary_buffer Garbage collection support declare_reachable (C++11) undeclare_reachable (C++11) declare_no_pointers (C++11) undeclare_no_pointers (C++11) pointer_safety (C++11) get_pointer_safety (C++11) Miscellaneous pointer_traits (C++11) addressof (C++11) align (C++11) C Library malloc calloc realloc free Low level memory management

 

std::pmr::memory_resource

memory_resource::memory_resource

Public member functions

memory_resource::allocate

memory_resource::deallocate

memory_resource::is_equal

Protected member functions

memory_resource::do_allocate

memory_resource::do_deallocate

memory_resource::do_is_equal

Non-member functions

operator==operator!=

 

bool operator==(const std::pmr::memory_resource& a,                  const std::pmr::memory_resource& b);	(1)	(since C++17)
bool operator!=(const std::pmr::memory_resource& a,                  const std::pmr::memory_resource& b);	(2)	(since C++17)

Compares the memory_resources a and b for equality. Two memory_resources compare equal if and only if memory allocated from one memory_resource can be deallocated from the other and vice versa.

Return value

1) &a == &b || a.is_equal(b)

2) !(a == b)

Exceptions

noexcept specification:  

noexcept

  

See also

is_equal	compare for equality with another memory_resource (public member function)