Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
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memory_resource* null_memory_resource() noexcept;
(library fundamentals TS)

Returns a pointer to a memory_resource that doesn't perform any allocation.

[edit] Return value

Returns a pointer p to a static storage duration object of a type derived from std::experimental::pmr::memory_resource, with the following properties:

  • its allocate() function always throws std::bad_alloc;
  • its deallocate() function has no effect;
  • for any memory_resource r, p->is_equal(r) returns &r == p.

The same value is returned every time this function is called.