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CVTF_TO_INTERNAL_TIME - Convert
External Time to Internal Time (F-Floating-Point Value)
Format:
24-OCT-1998 ZE.
resultant_time = vms_lib.cvtf_to_internal_time \
(operation, input_time)
Returns:
Arguments:
See GENMAN 'Programming',
'special OpenVMS datatypes'
for details.
Examples:
>>> import vms_lib
>>> # set up some constants
>>> LIB_K_DELTA_WEEKS_F = 26
>>> LIB_K_DELTA_DAYS_F = 27
>>> LIB_K_DELTA_HOURS_F = 28
>>> LIB_K_DELTA_MINUTES_F = 29
>>> LIB_K_DELTA_SECONDS_F = 30
>>> op = LIB_K_DELTA_SECONDS_F
>>> import vms_sys
>>> resultant_time = vms_lib.cvtf_to_internal_time (op, 0.5)
>>> resultant_time
-5000000L
>>> vms_sys.asctim (resultant_time)
' 0 00:00:00.50'
>>>
>>> op = LIB_K_DELTA_DAYS_F
>>> print 8.0/24.0
0.333333333333
>>> resultant_time = vms_lib.cvtf_to_internal_time (op, 8.0/24.0)
-287999971200L
>>> vms_sys.asctim (resultant_time)
' 0 07:59:59.99'
>>>
>>> op = LIB_K_DELTA_DAYS_F
>>> print 6.0/24.0
0.25
>>> resultant_time = vms_lib.cvtf_to_internal_time (op, 6.0/24.0)
>>> resultant_time
-216000000000L
>>> vms_sys.asctim (resultant_time)
' 0 06:00:00.00'
>>>
>>> # a week has 7 days. 0.5 week = 3.5 days = 3 days, 12 hours
>>> op = LIB_K_DELTA_WEEKS_F
>>> resultant_time = vms_lib.cvtf_to_internal_time (op, 0.5)
>>> resultant_time
-3024000000000L
>>> vms_sys.asctim (resultant_time)
' 3 12:00:00.00'
>>>
>>> vms_lib.cvtf_to_internal_time ('X', 0.5)
Traceback (innermost last):
File "<stdin>", line 1, in ?
TypeError: illegal argument type for built-in operation
>>>
>>> # -----------------------------v
>>> vms_lib.cvtf_to_internal_time (1, 0.5)
Traceback (innermost last):
File "<stdin>", line 1, in ?
vms_lib.error: (1410060, '%LIB-F-INVOPER, invalid operation specified')
>>>
>>> vms_lib.cvtf_to_internal_time (op, 'X')
Traceback (innermost last):
File "<stdin>", line 1, in ?
TypeError: illegal argument type for built-in operation
>>>
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