tmp/tmpldp48lhv/{from.md → to.md}
RENAMED
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| 1 |
+
#### Pool resource members <a id="mem.res.pool.mem">[[mem.res.pool.mem]]</a>
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| 3 |
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``` cpp
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| 4 |
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void release();
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```
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*Effects:* Calls `upstream_resource()->deallocate()` as necessary to
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| 8 |
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release all allocated memory.
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| 9 |
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| 10 |
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[*Note 1*: The memory is released back to `upstream_resource()` even if
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`deallocate` has not been called for some of the allocated
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| 12 |
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blocks. — *end note*]
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``` cpp
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memory_resource* upstream_resource() const;
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```
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*Returns:* The value of the `upstream` argument provided to the
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constructor of this object.
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``` cpp
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pool_options options() const;
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| 23 |
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```
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*Returns:* The options that control the pooling behavior of this
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| 26 |
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resource. The values in the returned struct may differ from those
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supplied to the pool resource constructor in that values of zero will be
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replaced with *implementation-defined* defaults, and sizes may be
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| 29 |
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rounded to unspecified granularity.
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| 30 |
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``` cpp
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void* do_allocate(size_t bytes, size_t alignment) override;
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```
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| 34 |
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*Returns:* A pointer to allocated storage
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| 36 |
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([[basic.stc.dynamic.deallocation]]) with a size of at least `bytes`.
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The size and alignment of the allocated memory shall meet the
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requirements for a class derived from `memory_resource` ([[mem.res]]).
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| 40 |
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*Effects:* If the pool selected for a block of size `bytes` is unable to
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| 41 |
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satisfy the memory request from its own internal data structures, it
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| 42 |
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will call `upstream_resource()->allocate()` to obtain more memory. If
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| 43 |
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`bytes` is larger than that which the largest pool can handle, then
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| 44 |
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memory will be allocated using `upstream_resource()->allocate()`.
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| 45 |
+
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| 46 |
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*Throws:* Nothing unless `upstream_resource()->allocate()` throws.
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| 47 |
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| 48 |
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``` cpp
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| 49 |
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void do_deallocate(void* p, size_t bytes, size_t alignment) override;
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| 50 |
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```
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| 51 |
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| 52 |
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*Effects:* Returns the memory at `p` to the pool. It is unspecified if,
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or under what circumstances, this operation will result in a call to
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| 54 |
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`upstream_resource()->deallocate()`.
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| 55 |
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| 56 |
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*Throws:* Nothing.
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| 57 |
+
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| 58 |
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``` cpp
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| 59 |
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bool synchronized_pool_resource::do_is_equal(
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| 60 |
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const memory_resource& other) const noexcept override;
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| 61 |
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```
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| 62 |
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*Returns:*
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| 64 |
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`this == dynamic_cast<const synchronized_pool_resource*>(&other)`.
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| 65 |
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| 66 |
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``` cpp
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| 67 |
+
bool unsynchronized_pool_resource::do_is_equal(
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| 68 |
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const memory_resource& other) const noexcept override;
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| 69 |
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```
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| 70 |
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| 71 |
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*Returns:*
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| 72 |
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`this == dynamic_cast<const unsynchronized_pool_resource*>(&other)`.
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| 73 |
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