int_big_add.py « basics « tests - micropython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems

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# tests transition from small to large int representation by addition

# 31-bit overflow
i = 0x3fffffff
print(i + i)
print(-i + -i)

# 63-bit overflow
i = 0x3fffffffffffffff
print(i + i)
print(-i + -i)