mir-algorithm ~master (2021-09-24T13:11:04Z)

fromPythonBuffer

mir ndslice connect cpython

Fills the slice (structure) from the python view. The view should be created by $(PGB) that was called with pythonBufferFlags.

nothrow @nogc @trusted
PythonBufferErrorCode
fromPythonBuffer
(
T
size_t N
SliceKind kind
)
(
ref Slice!(T*, N, kind) slice
,
ref const Py_buffer view
)
if (
N <= PyBuf_max_ndim
)

Parameters

slice Slice!(T*, N, kind)

output ndslice

view Py_buffer

Py_buffer requested

Return Value

Type: PythonBufferErrorCode

one of the input_buffer_* PythonBufferErrorCode on failure and success otherwise.

Examples

import mir.ndslice.slice: Slice;
auto bar(ref const Py_buffer view)
{
    Slice!(const(double)*, 2) mat;
    if (auto error = mat.fromPythonBuffer(view))
    {
        // has null pointer
    }
    return mat;
}

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