Getting the value of a TVector2 using GetDataMemberValue

[jgalan]

Recently, at the end of this topic was discussed the implementation of a method that retrieves the value of a data member using its name, as implemented now in TRestMetadata::GetDataMemberValue.

Redirecting cout to buffer causes error

REST version : v2.2.12 Hello, I am trying to redirect the standard output to a buffer. I do the following: std::stringstream buffer; std::streambuf * old = std::cout.rdbuf(buffer.rdbuf()); std::cout << "testing" << std::endl; std::string text = buffer.str(); std::cout.rdbuf(old); cout << "text: " << text << endl; The code works correctly on a root prompt. However if I try to run this on a restRoot promp I get a segmentation break, the error I get is the following: Root > std::string text…

However, this seems to work only with numbers and strings. How should I get a TVector2 structure? I tried using vName.fX to get the X component, but it did not work.

Perhaps, if it is a complex structure, as TVector2 the REST_Reflection methods could identify this and just use the TVector2::Print method? for example…

[nkx]

Indeed the most straight forward solution is to write a very long code to iterate all possible types and handle their print logic. But I think there must be some existing code to do this. For example when you define a vector<int> object in root prompt, it will show its content. I am still looking a way to do this.