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common: add template function Is<>() testing EbmlElement for specific classes

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Moritz Bunkus 2013-12-01 14:44:13 +01:00
parent 703cbeeeb6
commit b06cb5eb2e
1 changed files with 12 additions and 0 deletions
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12
src/common/ebml.h
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@ -298,6 +298,18 @@ GetChildValue(EbmlMaster *master) {
return GetChild<Telement>(master).GetValue(); return GetChild<Telement>(master).GetValue();
} }
template<typename T>
bool
Is(EbmlElement *e) {
return !e ? false : (EbmlId(*e) == T::ClassInfos.GlobalId);
}
template<typename T1, typename T2, typename... Trest>
bool
Is(EbmlElement *e) {
return !e ? false : Is<T1>(e) || Is<T2, Trest...>(e);
}
EbmlElement *empty_ebml_master(EbmlElement *e); EbmlElement *empty_ebml_master(EbmlElement *e);
EbmlElement *create_ebml_element(const EbmlCallbacks &callbacks, const EbmlId &id); EbmlElement *create_ebml_element(const EbmlCallbacks &callbacks, const EbmlId &id);
EbmlMaster *sort_ebml_master(EbmlMaster *e); EbmlMaster *sort_ebml_master(EbmlMaster *e);