http://d.puremagic.com/issues/show_bug.cgi?id=7488
Summary: Short array optimization for std.bitmanip.BitArray
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Phobos
AssignedTo: nob...@puremagic.com
ReportedBy: bearophile_h...@eml.cc
--- Comment #0 from bearophile_h...@eml.cc 2012-02-12 11:59:28 PST ---
An optimization for std.bitmanip.BitArray: when BitArray.length <=
(size_t.sizeof * 8), then BitArray.ptr stores the bit themselves (so ptr is in
a union with a size_t).
If the array of bits is short, this saves a GC allocation, increasing
performance and reducing the amount of memory used and garbage produced.
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