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from __future__ import division
cimport cython
def bigints(values):
for x in values:
print(repr(x).rstrip('L'))
def doit(x,y):
"""
>>> doit(1,2)
(0.5, 0)
>>> doit(4,3)
(1.3333333333333333, 1)
>>> doit(4,3.0)
(1.3333333333333333, 1.0)
>>> doit(4,2)
(2.0, 2)
"""
return x/y, x//y
def doit_inplace(x,y):
"""
>>> doit_inplace(1,2)
0.5
"""
x /= y
return x
def doit_inplace_floor(x,y):
"""
>>> doit_inplace_floor(1,2)
0
"""
x //= y
return x
def constants():
"""
>>> constants()
(0.5, 0, 2.5, 2.0, 2.5, 2)
"""
return 1/2, 1//2, 5/2.0, 5//2.0, 5/2, 5//2
def py_mix(a):
"""
>>> py_mix(1)
(0.5, 0, 0.5, 0.0, 0.5, 0)
>>> py_mix(1.0)
(0.5, 0.0, 0.5, 0.0, 0.5, 0.0)
>>> 2**53 / 2.0
4503599627370496.0
>>> bigints(py_mix(2**53))
4503599627370496.0
4503599627370496
4503599627370496.0
4503599627370496.0
4503599627370496.0
4503599627370496
>>> bigints(py_mix(2**53 + 1))
4503599627370496.0
4503599627370496
4503599627370496.0
4503599627370496.0
4503599627370496.0
4503599627370496
>>> py_mix(2**53 + 1.0)
(4503599627370496.0, 4503599627370496.0, 4503599627370496.0, 4503599627370496.0, 4503599627370496.0, 4503599627370496.0)
"""
return a/2, a//2, a/2.0, a//2.0, a/2, a//2
def py_mix_by_neg1(a):
"""
>>> py_mix_by_neg1(0)
(-0.0, 0, -0.0, -0.0, -0.0, 0)
>>> py_mix_by_neg1(-1)
(1.0, 1, 1.0, 1.0, 1.0, 1)
>>> py_mix_by_neg1(int(2**31-1))
(-2147483647.0, -2147483647, -2147483647.0, -2147483647.0, -2147483647.0, -2147483647)
>>> bigints(py_mix_by_neg1(int(-2**31-1)))
2147483649.0
2147483649
2147483649.0
2147483649.0
2147483649.0
2147483649
>>> results = py_mix_by_neg1(int(2**63-1))
>>> results[0] == results[2] == results[3] == results[4] == float(2**63-1) / -1.0 or results
True
>>> results[1] == results[5] == (2**63-1) // -1 or results
True
>>> results = py_mix_by_neg1(int(-2**63-1))
>>> results[0] == results[2] == results[3] == results[4] == float(-2**63-1) / -1.0 or results
True
>>> results[1] == results[5] == (-2**63-1) // -1 or results
True
"""
return a/-1, a//-1, a/-1.0, a//-1.0, a/-1, a//-1
def py_mix_rev(a):
"""
>>> py_mix_rev(4)
(0.25, 0, 1.25, 1.0, 1.25, 1)
>>> py_mix_rev(4.0)
(0.25, 0.0, 1.25, 1.0, 1.25, 1.0)
"""
return 1/a, 1//a, 5.0/a, 5.0//a, 5/a, 5//a
def int_mix(int a):
"""
>>> int_mix(1)
(0.5, 0, 0.5, 0.0, 0.5, 0)
"""
return a/2, a//2, a/2.0, a//2.0, a/2, a//2
def int_mix_rev(int a):
"""
>>> int_mix_rev(4)
(0.25, 0, 1.25, 1.0, 1.25, 1)
"""
return 1/a, 1//a, 5.0/a, 5.0//a, 5/a, 5//a
def float_mix(float a):
"""
>>> float_mix(1.0)
(0.5, 0.0, 0.5, 0.0, 0.5, 0.0)
"""
return a/2, a//2, a/2.0, a//2.0, a/2, a//2
def float_mix_rev(float a):
"""
>>> float_mix_rev(4.0)
(0.25, 0.0, 1.25, 1.0, 1.25, 1.0)
"""
return 1/a, 1//a, 5.0/a, 5.0//a, 5/a, 5//a
def infer_division_type():
"""
>>> v = infer_division_type()
double
>>> v
8333333.25
"""
v = (10000**2 - 1) / 12
print(cython.typeof(v))
return v
def int_int(int a, int b):
"""
>>> int_int(1, 2)
(0.5, 2.0)
"""
return a/b, b/a
def div_by_0(a):
"""
>>> div_by_0(0)
'OK'
>>> div_by_0(0.0)
'OK'
"""
try:
1/a
except ZeroDivisionError:
pass
else:
return "FAIL 1"
try:
1//a
except ZeroDivisionError:
pass
else:
return "FAIL 2"
try:
5.0/a
except ZeroDivisionError:
pass
else:
return "FAIL 3"
try:
5.0//a
except ZeroDivisionError:
pass
else:
return "FAIL 4"
try:
5/a
except ZeroDivisionError:
pass
else:
return "FAIL 5"
try:
5//a
except ZeroDivisionError:
pass
else:
return "FAIL 6"
try:
(2**15)/a
except ZeroDivisionError:
pass
else:
return "FAIL 7"
try:
(2**15)//a
except ZeroDivisionError:
pass
else:
return "FAIL 8"
try:
(2**30)/a
except ZeroDivisionError:
pass
else:
return "FAIL 9"
try:
(2**30)//a
except ZeroDivisionError:
pass
else:
return "FAIL 10"
return 'OK'
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