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Fix of custom streamer code #14856

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Merged
sawenzel merged 1 commit into from
Nov 26, 2025
Merged

Fix of custom streamer code #14856

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7 changes: 6 additions & 1 deletion Detectors/TPC/base/src/TPCFlagsMemberCustomStreamer.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ void MemberVectorPadFlagsStreamer(TBuffer& R__b, void* objp, int n)
}
std::vector<o2::tpc::PadFlags>* obj = static_cast<std::vector<o2::tpc::PadFlags>*>(objp);
if (R__b.IsReading()) {
obj->clear();
std::vector<int> R__stl;
R__stl.clear();
int R__n;
Expand All @@ -50,7 +51,8 @@ void MemberVectorPadFlagsStreamer(TBuffer& R__b, void* objp, int n)
R__stl.push_back(readtemp);
}
auto data = reinterpret_cast<unsigned short*>(R__stl.data());
for (int i = 0; i < R__n; ++i) {
constexpr size_t bloatfactor = sizeof(int) / sizeof(o2::tpc::PadFlags);
for (int i = 0; i < bloatfactor * R__n; ++i) {
obj->push_back(static_cast<o2::tpc::PadFlags>(data[i]));
}
} else {
Expand All @@ -63,6 +65,8 @@ void MemberVectorPadFlagsStreamer(TBuffer& R__b, void* objp, int n)
}

// register the streamer via static global initialization (on library load)
// the streamer is only correct in combination with new ROOT
#if ROOT_VERSION_CODE >= ROOT_VERSION(6, 33, 00)
namespace ROOT
{
static __attribute__((used)) int _R__dummyStreamer_3 =
Expand All @@ -79,3 +83,4 @@ static __attribute__((used)) int _R__dummyStreamer_3 =
return 0;
})();
} // namespace ROOT
#endif