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Enhance support of cling cmd prompt func defining

1

## Changes or fixes: Let `a_t` be a c++ class, and we have done `using std::ostream;`. In standalone cling cmd prompt, all of the below function definitions fail to be...

jiangyilism

hadd doesn't recompress for different algorithm at same level

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- [x] Checked for duplicates ### Describe the bug When changing the compression settings using hadd, using the same compression level used by the input file won't trigger a recompression...

dkpoult

libAfterImage: Properly set len parameter for GifAddExtensionBlock and iterate extensions

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# This Pull request: Is a resubmit of #10999 with additional needed changes (as discussed in that original PR) ## Changes or fixes: Fixes: #10990 ## Checklist: - [x] tested...

veprbl

[cmake][PyROOT] Pythonizations in build directory don't get updated in incremental builds

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### Describe the bug When you update the code in `bindings/pyroot/pythonizations/python/ROOT/_pythonization` and recompile ROOT, the corresponding `build` directory (`root_build/lib/ROOT/_pythonization`) doesn't get updated, and consequently also not the `root_install/lib/ROOT/_pythonization` directory when...

guitargeek

[ntuple] minimal support for unsplit fields

71

Introduces a new RFieldBase descendant, `RUnsplitField`. This field uses an offset column and an `std::byte` column to store ROOT I/O streamed objects. To create unsplit fields one can - directly...

jblomer

[ntuple] split RNTuple.hxx in reader/writer header

10

jblomer

[ntuple] make zstd the default

3

jblomer

This was support for operator new signature introduced in C++17 in libNew (need for TMapFile)

1

This is related-to/necessary-for https://github.com/root-project/root/issues/13511 and https://github.com/root-project/root/issues/11353

pcanal

[cling] use one instead of two lookups within TClass::Init()

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# This Pull request: ## Changes or fixes: Fixes https://github.com/root-project/root/issues/7123 ## Checklist: - [x] tested changes locally - [x] updated the docs (if necessary)

ferdymercury

fix: speed up `RDataFrame::Display`

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# This Pull request: Do not use `cling::printValue` for printing the column elements of the arithmetic types. ## Changes or fixes: This require a proper specialisation, however it already gives...

ianna