def writeVarInt16(self, value: int) -> None:
"""
Writes a variable 16-bit signed integer value to the underlying storage.
:param value: Value to write.
:raises PythonRuntimeException: If the value is out of the range.
"""
self._writeVarNum(value, 2, getBitSizeOfVarInt16(value) // 8, isSigned=True)
def bitSizeOf(_bitPosition, value):
"""
Returns length of Zserio varint16 type stored in the bit stream in bits.
:param _bitPosition: Not used.
:param value: Zserio varint16 type value.
:returns: Length of given Zserio varint16 type in bits.
"""
return getBitSizeOfVarInt16(value)
def writeVarInt16(self, value):
"""
Writes a variable 16-bit signed integer value to the underlying storage.
:param value: Value to write.
:raises PythonRuntimeException: If the value is out of the range.
"""
numBytes = getBitSizeOfVarInt16(value) // 8
self._writeVarNum(abs(value), numBytes, VARINT16_NUM_BITS, sign=(value < 0))
def testGetBitSizeOfVarInt16(self):
self.assertEqual(1 * 8, getBitSizeOfVarInt16(0))
self.assertEqual(1 * 8, getBitSizeOfVarInt16(1 << (0)))
self.assertEqual(1 * 8, getBitSizeOfVarInt16(-(1 << (0))))
self.assertEqual(1 * 8, getBitSizeOfVarInt16((1 << (6)) - 1))
self.assertEqual(1 * 8, getBitSizeOfVarInt16(-((1 << (6)) - 1)))
self.assertEqual(2 * 8, getBitSizeOfVarInt16(1 << (6)))
self.assertEqual(2 * 8, getBitSizeOfVarInt16(-(1 << (6))))
self.assertEqual(2 * 8, getBitSizeOfVarInt16((1 << (6 + 8)) - 1))
self.assertEqual(2 * 8, getBitSizeOfVarInt16(-((1 << (6 + 8)) - 1)))
with self.assertRaises(PythonRuntimeException):
getBitSizeOfVarInt16(-(1 << (6 + 8))) # below the lower bound
with self.assertRaises(PythonRuntimeException):
getBitSizeOfVarInt16(1 << (6 + 8)) # above the upper bound