tree acc1d1e325ee5975ad0426b53b550e1a4720a448
parent 2ca07de83c3cc6a2cb285eb82d4dc9c3ed4fe8a0
author Wenzel Jakob <wenzel@inf.ethz.ch> 1453066600 +0100
committer Wenzel Jakob <wenzel@inf.ethz.ch> 1453066275 +0100

improved handling of shared/smart pointers

Previously, pybind11 required classes using std::shared_ptr<> to derive
from std::enable_shared_from_this<> (or compilation failures would ensue).

Everything now also works for classes that don't do this, assuming that
some basic rules are followed (e.g. never passing "raw" pointers of
instances manged by shared pointers). The safer
std::enable_shared_from_this<> approach continues to be supported.