http://d.puremagic.com/issues/show_bug.cgi?id=2504
Summary: Reserve for associative arrays
Product: D
Version: 2.021
Platform: PC
OS/Version: Windows
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
It appears that adding an element to an associative array always triggers a
memory allocation. Especially in multithreaded code, this is inefficient. It
would be nice if associative arrays had a .reserve(size_t n) property, which
reserved enough space for n objects, and stored the capacity internally. The
idea is that, until the reserve buffer is exhausted, no interaction of any kind
with the GC would be needed to add an element to the AA.
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