std::pmr::memory_resource:: allocate

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C++
Dynamic memory management
Uninitialized memory algorithms
Constrained uninitialized memory algorithms
Allocators
Garbage collection support
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)



std::pmr::memory_resource
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

[virtual]
allocates memory
(virtual private member function)
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