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xo-alloc: streamlining DArena allocation: + construct_with() helper

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This commit is contained in:
Roland Conybeare 2025-12-18 19:41:47 -05:00
commit 1ec9759f19
5 changed files with 53 additions and 42 deletions
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14
src/alloc2/IAllocator_DX1Collector.cpp
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@ -70,18 +70,8 @@ namespace xo {
IAllocator_DX1Collector::alloc_range(const DX1Collector & d,
DArena & ialloc) noexcept -> range_type
{
byte * begin_mem = IAllocator_DArena::alloc(ialloc,
sizeof(DX1CollectorIterator));
byte * end_mem = IAllocator_DArena::alloc(ialloc,
sizeof(DX1CollectorIterator));
assert(begin_mem);
assert(end_mem);
DX1CollectorIterator * begin_ix
= new (begin_mem) DX1CollectorIterator(d.begin());
DX1CollectorIterator * end_ix
= new ( end_mem) DX1CollectorIterator(d.end());
DX1CollectorIterator * begin_ix = construct_with<DX1CollectorIterator>(ialloc, d.begin());
DX1CollectorIterator * end_ix = construct_with<DX1CollectorIterator>(ialloc, d.end());
obj<AAllocIterator> begin_obj = with_facet<AAllocIterator>::mkobj(begin_ix);
obj<AAllocIterator> end_obj = with_facet<AAllocIterator>::mkobj( end_ix);