def writeVarUInt(self, value: int) -> None:
"""
Writes a variable unsigned integer value (up to 9 bytes) to the underlying storage.
:param value: Value to write.
:raises PythonRuntimeException: If the value is out of the range.
"""
self._writeVarNum(value, 9, getBitSizeOfVarUInt(value) // 8, isSigned=False)
def writeVarUInt(self, value):
"""
Writes a variable unsigned integer value (up to 9 bytes) to the underlying storage.
:param value: Value to write.
:raises PythonRuntimeException: If the value is out of the range.
"""
numBytes = getBitSizeOfVarUInt(value) // 8
self._writeVarNum(value, numBytes, VARUINT_NUM_BITS)
def bitSizeOf(_bitPosition, value):
"""
Returns length of Zserio varuint type stored in the bit stream in bits.
:param _bitPosition: Not used.
:param value: Zserio varuint type value.
:returns: Length of given Zserio varuint type in bits.
"""
return getBitSizeOfVarUInt(value)
def testGetBitSizeOfVarUInt(self):
self.assertEqual(8, getBitSizeOfVarUInt(0))
self.assertEqual(8, getBitSizeOfVarUInt((1 << 7) - 1))
self.assertEqual(16, getBitSizeOfVarUInt((1 << 7)))
self.assertEqual(16, getBitSizeOfVarUInt((1 << 14) - 1))
self.assertEqual(24, getBitSizeOfVarUInt((1 << 14)))
self.assertEqual(24, getBitSizeOfVarUInt((1 << 21) - 1))
self.assertEqual(32, getBitSizeOfVarUInt((1 << 21)))
self.assertEqual(32, getBitSizeOfVarUInt((1 << 28) - 1))
self.assertEqual(40, getBitSizeOfVarUInt((1 << 28)))
self.assertEqual(40, getBitSizeOfVarUInt((1 << 35) - 1))
self.assertEqual(48, getBitSizeOfVarUInt((1 << 35)))
self.assertEqual(48, getBitSizeOfVarUInt((1 << 42) - 1))
self.assertEqual(56, getBitSizeOfVarUInt((1 << 42)))
self.assertEqual(56, getBitSizeOfVarUInt((1 << 49) - 1))
self.assertEqual(64, getBitSizeOfVarUInt((1 << 49)))
self.assertEqual(64, getBitSizeOfVarUInt((1 << 56) - 1))
self.assertEqual(72, getBitSizeOfVarUInt((1 << 56)))
self.assertEqual(72, getBitSizeOfVarUInt((1 << 64) - 1))
with self.assertRaises(PythonRuntimeException):
getBitSizeOfVarUInt(-1) # below the lower bound
with self.assertRaises(PythonRuntimeException):
getBitSizeOfVarUInt(1 << 64) # above the upper bound