CkPython

Append Big-Endian or Little-Endian Integers

Demonstrates how to append integers in big-endian or little-endian byte order to a BinData.

Note: This example requires Chilkat v9.5.0.77 or greater.

CkPython

import chilkat

success = False

bd = chilkat.CkBinData()

# The hex value of decimal 123456789 is 0x075BCD15
x = 123456789

# Appending little-endian causes bytes to be
# appended in the order 0x15, 0xCD, 0x5B, 0x07
littleEndian = True
success = bd.AppendInt4(x,littleEndian)

print(bd.getEncoded("hex"))
# Output is: 15CD5B07

# Now append the same integer in big-endian byte order.
# Appending bit-endian causes bytes to be
# appended in the order 0x07, 0x5B, 0xCD, 0x15
littleEndian = False
bd.AppendInt4(x,littleEndian)

print(bd.getEncoded("hex"))
# bd now contains: 15CD5B07075BCD15

# -------------------------------------------
# Now do the same thing with 16-bit integers
bd.Clear()

# 1234 decimal = 0x04D2 hex.
x = 1234

littleEndian = True
bd.AppendInt2(x,littleEndian)

print(bd.getEncoded("hex"))
# Output is: D204

littleEndian = False
bd.AppendInt2(x,littleEndian)

print(bd.getEncoded("hex"))
# Output is now: D20404D2