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#1676 null handling in inverses

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This commit is contained in:
Thomas Krijnen
2021-09-04 14:27:46 +02:00
parent 89535e0b6a
commit cfc1ddee5e
1 changed files with 3 additions and 1 deletions
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src/ifcparse/IfcParse.cpp
+3 -1
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@@ -2211,7 +2211,9 @@ IfcEntityList::ptr IfcFile::getInverse(int instance_id, const IfcParse::declarat
if (valid && attribute_index >= 0) { if (valid && attribute_index >= 0) {
try { try {
Argument* arg = (*it)->data().getArgument(attribute_index); Argument* arg = (*it)->data().getArgument(attribute_index);
if (arg->type() == IfcUtil::Argument_ENTITY_INSTANCE) { if (arg->isNull()) {
valid = false;
} else if (arg->type() == IfcUtil::Argument_ENTITY_INSTANCE) {
valid = instance == *arg; valid = instance == *arg;
} else if (arg->type() == IfcUtil::Argument_AGGREGATE_OF_ENTITY_INSTANCE) { } else if (arg->type() == IfcUtil::Argument_AGGREGATE_OF_ENTITY_INSTANCE) {
IfcEntityList::ptr li = *arg; IfcEntityList::ptr li = *arg;