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py/objstr: Binary type of str/bytes for buffer protocol is 'B'.

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The type is an unsigned 8-bit value, since bytes objects are exactly
that.  And it's also sensible for unicode strings to return unsigned
values when accessed in a byte-wise manner (CPython does not allow this).
This commit is contained in:
Damien George
2016-05-07 21:18:17 +01:00
parent 2724bd4a94
commit 12dd8df375
2 changed files with 12 additions and 1 deletions
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11
tests/basics/memoryview2.py Normal file
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# test memoryview accessing maximum values for signed/unsigned elements
from array import array
print(list(memoryview(b'\x7f\x80\x81\xff')))
print(list(memoryview(array('b', [0x7f, -0x80]))))
print(list(memoryview(array('B', [0x7f, 0x80, 0x81, 0xff]))))
print(list(memoryview(array('h', [0x7f00, -0x8000]))))
print(list(memoryview(array('H', [0x7f00, 0x8000, 0x8100, 0xffff]))))
print(list(memoryview(array('i', [0x7f000000, -0x80000000]))))
print(list(memoryview(array('I', [0x7f000000, 0x80000000, 0x81000000, 0xffffffff]))))