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Use new style __init__ in numpy docs (#2316)

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Boris Staletic 2020-07-23 16:03:55 +02:00 committed by GitHub
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docs/advanced/pycpp/numpy.rst
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@ -81,7 +81,7 @@ buffer objects (e.g. a NumPy matrix).
constexpr bool rowMajor = Matrix::Flags & Eigen::RowMajorBit;
py::class_<Matrix>(m, "Matrix", py::buffer_protocol())
.def("__init__", [](Matrix &m, py::buffer b) {
.def("__init__", [](py::buffer b) {
typedef Eigen::Stride<Eigen::Dynamic, Eigen::Dynamic> Strides;
/* Request a buffer descriptor from Python */
@ -101,7 +101,7 @@ buffer objects (e.g. a NumPy matrix).
auto map = Eigen::Map<Matrix, 0, Strides>(
static_cast<Scalar *>(info.ptr), info.shape[0], info.shape[1], strides);
new (&m) Matrix(map);
return Matrix(m);
});
For reference, the ``def_buffer()`` call for this Eigen data type should look