本文整理匯總了Python中pyasn1.type.univ.Real方法的典型用法代碼示例。如果您正苦於以下問題：Python univ.Real方法的具體用法？Python univ.Real怎麽用？Python univ.Real使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類pyasn1.type.univ的用法示例。
在下文中一共展示了univ.Real方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: _opaque_filter
# 需要導入模塊: from pyasn1.type import univ [as 別名]
# 或者: from pyasn1.type.univ import Real [as 別名]
def _opaque_filter(value):
if value.upper().startswith('FLOAT: '):
return encoder.encode(univ.Real(float(value[7:])))
else:
return [int(y, 16) for y in value.split(' ')] 示例2: valueDecoder
# 需要導入模塊: from pyasn1.type import univ [as 別名]
# 或者: from pyasn1.type.univ import Real [as 別名]
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
length, state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if not head:
return self._createComponent(asn1Spec, tagSet, 0.0), tail
fo = oct2int(head[0]); head = head[1:]
if fo & 0x80: # binary enoding
n = (fo & 0x03) + 1
if n == 4:
n = oct2int(head[0])
eo, head = head[:n], head[n:]
if not eo or not head:
raise error.PyAsn1Error('Real exponent screwed')
e = oct2int(eo[0]) & 0x80 and -1 or 0
while eo: # exponent
e <<= 8
e |= oct2int(eo[0])
eo = eo[1:]
p = 0
while head: # value
p <<= 8
p |= oct2int(head[0])
head = head[1:]
if fo & 0x40: # sign bit
p = -p
value = (p, 2, e)
elif fo & 0x40: # infinite value
value = fo & 0x01 and '-inf' or 'inf'
elif fo & 0xc0 == 0: # character encoding
try:
if fo & 0x3 == 0x1: # NR1
value = (int(head), 10, 0)
elif fo & 0x3 == 0x2: # NR2
value = float(head)
elif fo & 0x3 == 0x3: # NR3
value = float(head)
else:
raise error.SubstrateUnderrunError(
'Unknown NR (tag %s)' % fo
)
except ValueError:
raise error.SubstrateUnderrunError(
'Bad character Real syntax'
)
else:
raise error.SubstrateUnderrunError(
'Unknown encoding (tag %s)' % fo
)
return self._createComponent(asn1Spec, tagSet, value), tail