Output of Contraction in version 1.0.0

[manuschneider]

When I do a contraction in cytnx v1.0.0, I get some ouput that seems not necessary.
For example

A=cytnx.UniTensor.ones([1,1])
B=cytnx.UniTensor.ones([1,1])
C=cytnx.Contract([A,B])

leads to the Ouptut

Setting root pointers from (T0,T1)

It seems this is caused by line 33 in contraction_tree.cpp:

std::cout << "Setting root pointers from " << root->name << std::endl;

Can this be deleted?

It should be commented out in the official release as well.

[hunghaoti]

The issue has been solved (see #561 ).