std::pmr::memory_resource::allocate
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std::pmr::memory_resource
Public member functions
memory_resource::allocate
Private member functions
Non-member functions
(until C++20)
void* allocate( std::size_t bytes,
std::size_t alignment = alignof(std::max_align_t ) );
(since C++17)
std::size_t alignment = alignof(std::max_align_t ) );
Allocates storage with a size of at least bytes bytes, aligned to the specified alignment.
Equivalent to return do_allocate(bytes, alignment);.
[edit] Exceptions
Throws an exception if storage of the requested size and alignment cannot be obtained.
[edit] 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 |