Python Buffer.ptr Examples

Example #1

File: categorical.py Project: zhuohuwu0603/cudf

    def children(self):
        if self._children is None:
            codes_column = self.base_children[0]

            buf = Buffer(codes_column.base_data)
            buf.ptr = buf.ptr + (self.offset * codes_column.dtype.itemsize)
            buf.size = self.size * codes_column.dtype.itemsize

            codes_column = column.build_column(
                data=buf, dtype=codes_column.dtype, size=self.size,
            )
            self._children = (codes_column,)
        return self._children

Example #2

File: categorical.py Project: vyasr/cudf

    def children(self) -> Tuple[NumericalColumn]:
        if self._children is None:
            codes_column = self.base_children[0]

            buf = Buffer(codes_column.base_data)
            buf.ptr = buf.ptr + (self.offset * codes_column.dtype.itemsize)
            buf.size = self.size * codes_column.dtype.itemsize

            codes_column = cast(
                cudf.core.column.NumericalColumn,
                column.build_column(
                    data=buf, dtype=codes_column.dtype, size=self.size,
                ),
            )
            self._children = (codes_column,)
        return self._children