Jason Rhinelander c03db9bad9 Fail static_assert when trying to reference non-referencable types ... The previous commit to address #392 triggers a compiler warning about returning a reference to a local variable, which is *not* a false alarm: the following: py::cast<int &>(o) (which happens internally in an overload declaration) really is returning a reference to a local, because the cast operators for the type_caster for numeric types returns a reference to its own member. This commit adds a static_assert to make that a compilation failure rather than returning a reference into about-to-be-freed memory. Incidentally, this is also a fix for #219, which is exactly the same issue: we can't reference numeric primitives that are cast from wrappers around python numeric types.		2016-09-07 16:07:59 -04:00
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pybind11	Fail static_assert when trying to reference non-referencable types	2016-09-07 16:07:59 -04:00