circuitpython/tests/basics/int_constfolding.py

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# tests int constant folding in compiler
# positive
print(+1)
print(+100)
# negation
print(-1)
print(-(-1))
# 1's complement
print(~0)
print(~1)
print(~-1)
# addition
print(1 + 2)
# subtraction
print(1 - 2)
print(2 - 1)
# multiplication
print(1 * 2)
print(123 * 456)
# floor div and modulo
print(123 // 7, 123 % 7)
print(-123 // 7, -123 % 7)
print(123 // -7, 123 % -7)
print(-123 // -7, -123 % -7)
# power
print(2 ** 3)
print(3 ** 4)
# won't fold so an exception can be raised at runtime
try:
1 << -1
except ValueError:
print('ValueError')