Function getindex

Lib/test/test_buffer.py:341–346

Convert multi-dimensional index to the position in the flat list.

(ndim, ind, strides)

    return product(*iterables)

def getindex(ndim, ind, strides):
    """Convert multi-dimensional index to the position in the flat list."""
    ret = 0
    for i in range(ndim):
        ret += strides[i] * ind[i]
    return ret

def transpose(src, shape):
    """Transpose flat item list that is regarded as a multi-dimensional