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Merge pull request #947 from m-holger/null

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Prevent destruction of shared null objects
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Jay Berkenbilt 2023-04-15 12:30:41 -04:00 committed by GitHub
commit 989819b75f
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1 changed files with 3 additions and 2 deletions
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libqpdf/QPDF.cc
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@ -247,10 +247,11 @@ QPDF::~QPDF()
// but we'll explicitly clear the xref table anyway just to // but we'll explicitly clear the xref table anyway just to
// prevent any possibility of resolve() succeeding. // prevent any possibility of resolve() succeeding.
this->m->xref_table.clear(); this->m->xref_table.clear();
auto null_obj = QPDF_Null::create();
for (auto const& iter: this->m->obj_cache) { for (auto const& iter: this->m->obj_cache) {
iter.second.object->disconnect(); iter.second.object->disconnect();
iter.second.object->destroy(); if (iter.second.object->getTypeCode() != ::ot_null) {
iter.second.object->destroy();
}
} }
} }