23 General utilities library [utilities]

23.12 Memory resources [mem.res]

23.12.6 Class monotonic_­buffer_­resource [mem.res.monotonic.buffer]

23.12.6.1 monotonic_­buffer_­resource constructor and destructor [mem.res.monotonic.buffer.ctor]

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explicit monotonic_buffer_resource(memory_resource* upstream); monotonic_buffer_resource(size_t initial_size, memory_resource* upstream);
1
#
Requires: upstream shall be the address of a valid memory resource.
initial_­size, if specified, shall be greater than zero.
2
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Effects: Sets upstream_­rsrc to upstream and current_­buffer to nullptr.
If initial_­size is specified, sets next_­buffer_­size to at least initial_­size; otherwise sets next_­buffer_­size to an implementation-defined size.
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monotonic_buffer_resource(void* buffer, size_t buffer_size, memory_resource* upstream);
3
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Requires: upstream shall be the address of a valid memory resource.
buffer_­size shall be no larger than the number of bytes in buffer.
4
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Effects: Sets upstream_­rsrc to upstream, current_­buffer to buffer, and next_­buffer_­size to buffer_­size (but not less than 1), then increases next_­buffer_­size by an implementation-defined growth factor (which need not be integral).
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~monotonic_buffer_resource();
5
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Effects: Calls release().