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xo-object2: allow 0-capacity DArrays + utest

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This commit is contained in:
Roland Conybeare 2026-01-15 17:22:03 -05:00
commit 293d805351
3 changed files with 47 additions and 10 deletions
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16
xo-object2/src/object2/DArray.cpp
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@ -17,21 +17,17 @@ namespace xo {
DArray::empty(obj<AAllocator> mm,
size_type cap)
{
assert(cap > 0);
DArray * result = nullptr;
if (cap > 0) {
void * mem = mm.alloc(typeseq::id<DArray>(),
sizeof(DArray) + cap * sizeof(obj<AGCObject>));
void * mem = mm.alloc(typeseq::id<DArray>(),
sizeof(DArray) + cap * sizeof(obj<AGCObject>));
result = new (mem) DArray();
result = new (mem) DArray();
assert(result);
assert(result);
result->capacity_ = cap;
result->size_ = 0;
}
result->capacity_ = cap;
result->size_ = 0;
return result;
}