Value printer confused about valid address

[pcanal]

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Description

On MacOS the address of the name returned by type_index for the type_info of numerical types (and void) is incorrectly tagged by the value printer as an invalid address.

Reproducer

root.exe -b -l
root [0] std::type_index(typeid(TObject)).name()
(const char *) "7TObject"
root [1] std::type_index(typeid(int)).name()
(const char *) 0x19eab659c <invalid memory address>
root [2] std::cout << (const char *) 0x19eab659c << '\n';
i

ROOT version

master.

Installation method

from sorce.

Operating system

MacOS

Additional context

No response

[dpiparo]

Hi @vgvassilev is this hard to address?

[vgvassilev]

Looks like the bug is in the implementation of cling::utils::isAddressValid which makes a bunch of system calls iirc... I am not sure if we can do a lot here...

[vgvassilev]

Maybe @hahnjo knows how to make this work...