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Serialisation (and therefore I/O) issues with TF1 and TFitResultPtr

4

Original title: "TF1 and TFitResultPtr do not serialise correctly pickle, and this is an issue with Python multiprocessing" ### Check duplicate issues. - [X] Checked for duplicates ### Description TF1...

dpiparo

[hist] Fix I/O of TFormula nd TFitResultPtr

2

Fix the I/O of predefined functions (gaus, expo, etc..) where the data member fNumber was not saved in the file and could not be recomputed afterwards. Fix also the I/O...

lmoneta

### Check duplicate issues. - [X] Checked for duplicates ### Description For a ROOT file structured with top-level directories A and B, it seems that if B contains a subdirectory...

jln-m

TFile::k630forwardCompatibility does not apply to new files correctly

1

### Check duplicate issues. - [X] Checked for duplicates ### Description When setting `TFile.v630forwardCompatibility` to true in `/etc/root/system.rootrc`, there is still confusing behavior and new files can be written without...

wdconinc

3 TMVA test requires BLAS library but run even when it was not found.

4

See https://github.com/root-project/root/issues/16553 The following 3 tests fails consistently with missing BLAS symbols ``` 984:tutorial-tmva-TMVA_SOFIE_GNN_Application 988:tutorial-tmva-TMVA_SOFIE_RDataFrame 990:tutorial-tmva-TMVA_SOFIE_RSofieReader 353-gtest-tmva-pymva-TestRModelParserKeras ```

pcanal

[ntuple] Mark RField methods as final and remove duplicate implementations

1

* Mark (most) `RField` specializations as `final`; the only exception is `RField` which is the base class of `RField`. * Mark (most) overriden functions in the `RFieldBase` hierarchy as final;...

hahnjo

[ntuple] Add RNTupleModel::GetMutableField

1

hahnjo

[hist] Fix segfault when calling `GetNumberOfBins()` on an empty TH2Poly

8

# This Pull request: This pull request fixes a segfault when calling `GetNumberOfBins()` on an empty TH2Poly by first checking whether `fBins` is null. To reproduce the original segfault: ```c++...

hqucms

TMVA fails to link to cudnn

2

### Check duplicate issues. - [ ] Checked for duplicates ### Description It seems that one can configure tmva into a state that cudnn is disabled, but it's still trying...

hageboeck

jblomer