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from math import *
nan = float('NaN')
inf = float('Inf')
def eq(left, right):
return left == right
def ne(left, right):
return left != right
def lt(left, right):
return left < right
def le(left, right):
return left <= right
def gt(left, right):
return left > right
def ge(left, right):
return left >= right
func_map = {
"==": eq,
"!=": ne,
"< ": lt,
"<=": le,
"> ": gt,
">=": ge,
}
compare = [2.0, nan, -nan, inf, -inf]
values = [nan, -nan, inf, -inf]
for i in range(len(values)):
for j in range(len(compare)):
for op in func_map:
print("%g %s %g -> %s" %
(values[i], op, compare[j], func_map[op](values[i], compare[j])))
print("")
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