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|
# mode: run
# tag: pep484, memoryview
cimport cython
include "../buffers/mockbuffers.pxi"
def get_int_2d(mslice: cython.int[:, :], i: cython.int, j: cython.int) -> cython.int:
"""
>>> C = IntMockBuffer("C", range(6), (2,3))
>>> get_int_2d(C, 1, 1)
acquired C
released C
4
Check negative indexing:
>>> get_int_2d(C, -1, 0)
acquired C
released C
3
>>> get_int_2d(C, -1, -2)
acquired C
released C
4
>>> get_int_2d(C, -2, -3)
acquired C
released C
0
Out-of-bounds errors:
>>> get_int_2d(C, 2, 0)
Traceback (most recent call last):
...
IndexError: Out of bounds on buffer access (axis 0)
>>> get_int_2d(C, 0, -4)
Traceback (most recent call last):
...
IndexError: Out of bounds on buffer access (axis 1)
"""
buf = mslice
return buf[i, j]
def set_int_2d(mslice: cython.int[:, :], i: cython.int, j: cython.int, value: cython.int) -> cython.int:
"""
Uses get_int_2d to read back the value afterwards. For pure
unit test, one should support reading in MockBuffer instead.
>>> C = IntMockBuffer("C", range(6), (2,3))
>>> set_int_2d(C, 1, 1, 10)
acquired C
released C
>>> get_int_2d(C, 1, 1)
acquired C
released C
10
Check negative indexing:
>>> set_int_2d(C, -1, 0, 3)
acquired C
released C
>>> get_int_2d(C, -1, 0)
acquired C
released C
3
>>> set_int_2d(C, -1, -2, 8)
acquired C
released C
>>> get_int_2d(C, -1, -2)
acquired C
released C
8
>>> set_int_2d(C, -2, -3, 9)
acquired C
released C
>>> get_int_2d(C, -2, -3)
acquired C
released C
9
Out-of-bounds errors:
>>> set_int_2d(C, 2, 0, 19)
Traceback (most recent call last):
...
IndexError: Out of bounds on buffer access (axis 0)
>>> set_int_2d(C, 0, -4, 19)
Traceback (most recent call last):
...
IndexError: Out of bounds on buffer access (axis 1)
"""
buf = mslice
buf[i, j] = value
|
