Difference between revisions of "cpp/memory/set default resource"
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=== Exceptions === | === Exceptions === | ||
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=== See also === | === See also === | ||
Revision as of 11:53, 31 March 2017
| Defined in header <memory_resource>
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| std::pmr::memory_resource* set_default_resource(std::pmr::memory_resource* r); |
(since C++17) | |
If r is not null, sets the default memory resource pointer to r; otherwise, sets the default memory resource pointer to std::pmr::new_delete_resource.
The default memory resource pointer is used by certain facilities when an explicit memory resource is not supplied. The initial default memory resource pointer is the return value of std::pmr::new_delete_resource.
This function is thread-safe. Every call to std::pmr::set_default_resource synchronizes with (see std::memory_order) the subsequent std::pmr::set_default_resource and std::pmr::get_default_resource calls.
Return value
Returns the previous value of the default memory resource pointer.
Exceptions
noexcept specification:
noexcept
See also
| (C++17) |
gets the default std::pmr::memory_resource (function) |
| (C++17) |
returns a static program-wide std::pmr::memory_resource that uses the global operator new and operator delete to allocate and deallocate memory (function) |
