Namespaces
Variants
Views
Actions

std::experimental::pmr::null_memory_resource

From cppreference.com
 
 
Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals 2 TS)
Extensions for parallelism (parallelism TS)
Extensions for concurrency (concurrency TS)
Concepts (concepts TS)
Ranges (ranges TS)
Special mathematical functions (special math TR)
 
 
 
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.