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Merge pull request #477 from jcarpent/topic/devel
Add id() helper
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,33 @@ | ||
// | ||
// Copyright (c) 2024 INRIA | ||
// | ||
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#ifndef __eigenpy_id_hpp__ | ||
#define __eigenpy_id_hpp__ | ||
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#include <boost/python.hpp> | ||
#include <boost/cstdint.hpp> | ||
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namespace eigenpy { | ||
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/// | ||
/// \brief Add the Python method id to retrieving a unique id for a given object | ||
/// exposed with Boost.Python | ||
/// | ||
template <class C> | ||
struct IdVisitor : public bp::def_visitor<IdVisitor<C> > { | ||
template <class PyClass> | ||
void visit(PyClass& cl) const { | ||
cl.def("id", &id, bp::arg("self"), | ||
"Returns the unique identity of an object.\n" | ||
"For object held in C++, it corresponds to its memory address."); | ||
} | ||
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private: | ||
static boost::int64_t id(const C& self) { | ||
return boost::int64_t(reinterpret_cast<const void*>(&self)); | ||
} | ||
}; | ||
} // namespace eigenpy | ||
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#endif // ifndef __eigenpy_id_hpp__ |
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Original file line number | Diff line number | Diff line change |
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import eigenpy | ||
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ldlt1 = eigenpy.LDLT() | ||
ldlt2 = eigenpy.LDLT() | ||
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id1 = ldlt1.id() | ||
id2 = ldlt2.id() | ||
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assert id1 != id2 | ||
assert id1 == ldlt1.id() | ||
assert id2 == ldlt2.id() |