std::pmr::memory_resource::allocate

void * allocate( std::size_t bytes, std::size_t alignment = alignof( std::max_align_t ) ) ;		(since C++17)

Allocates storage with a size of at least bytes bytes, aligned to the specified alignment.

Equivalent to return do_allocate(bytes, alignment);.

Exceptions

Throws an exception if storage of the requested size and alignment cannot be obtained.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
LWG 2843	C++17	over-alignment was allowed to be unsupported	alignment must be honoured

See also

do_allocate [virtual]

allocates memory (virtual private member function)