Message332355
If you define a structure which contains an 'c_int' and a 'c_double' member. Then run the sizeof() function for it you get 16 as result as follows:
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from ctypes import c_int
from ctypes import c_double
from ctypes import sizeof
from ctypes import Structure
from struct import Struct
class issueInSizeof(Structure):
_fields_ = [('KEY', c_int),
('VALUE', c_double)]
print(sizeof(issueInSizeof))
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output:
16
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In continue if you add another 'c_int' to your structure and run sizeof() function as follows. It return 16 too.
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from ctypes import c_int
from ctypes import c_double
from ctypes import sizeof
from ctypes import Structure
from struct import Struct
class issueInSizeof(Structure):
_fields_ = [('Index', c_int),
('KEY', c_int),
('VALUE', c_double)]
print(sizeof(issueInSizeof))
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output:
16
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If python assume the size of 'c_int' 4, then it should return 12 in the first run. Also if it assume the size of 'c_int' 8 then it should return 24 in the second run.
thanks in advance. |
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Date |
User |
Action |
Args |
2018-12-22 17:07:12 | Amir Aslan Haghrah | set | recipients:
+ Amir Aslan Haghrah |
2018-12-22 17:07:08 | Amir Aslan Haghrah | set | messageid: <1545498428.94.0.0770528567349.issue35562@roundup.psfhosted.org> |
2018-12-22 17:07:08 | Amir Aslan Haghrah | link | issue35562 messages |
2018-12-22 17:07:08 | Amir Aslan Haghrah | create | |
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