def test_declare(n):
"""
>>> test_declare(100)
(100, 100)
>>> test_declare(100.5)
(100, 100)
"""
x = cython.declare(cython.int)
y = cython.declare(cython.int, n)
if cython.compiled:
cython.declare(xx=cython.int, yy=cython.long)
i = cython.sizeof(xx)
ptr = cython.declare(cython.p_int, cython.address(y))
return y, ptr[0]
def test_sizeof():
"""
>>> test_sizeof()
True
True
True
True
True
"""
x = cython.declare(cython.bint)
print(cython.sizeof(x) == cython.sizeof(cython.bint))
sizeof = cython.sizeof
print(
sizeof(cython.char) <= sizeof(cython.short) <= sizeof(cython.int) <=
sizeof(cython.long) <= sizeof(cython.longlong))
print(cython.sizeof(cython.uint) == cython.sizeof(cython.int))
print(cython.sizeof(cython.p_int) == cython.sizeof(cython.p_double))
if cython.compiled:
print(cython.sizeof(cython.char) < cython.sizeof(cython.longlong))
else:
print(cython.sizeof(cython.char) == 1)
def test_declare(n):
"""
>>> test_declare(100)
(100, 100)
>>> test_declare(100.5)
(100, 100)
>>> test_declare(None) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: ...
"""
x = cython.declare(cython.int)
y = cython.declare(cython.int, n)
if cython.compiled:
cython.declare(xx=cython.int, yy=cython.long)
i = cython.sizeof(xx)
ptr = cython.declare(cython.p_int, cython.address(y))
return y, ptr[0]
def test_declare(n):
"""
>>> test_declare(100)
(100, 100)
>>> test_declare(100.5)
(100, 100)
>>> test_declare(None) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: ...
"""
x = cython.declare(cython.int)
y = cython.declare(cython.int, n)
if cython.compiled:
cython.declare(xx=cython.int, yy=cython.long)
i = cython.sizeof(xx)
ptr = cython.declare(cython.p_int, cython.address(y))
return y, ptr[0]
def cast_number(value: str):
"""
Convert numbers as string to an int or float
"""
# optimises for the common case of integers that fit into a C long
intval: cython.long = 0
safe_max_long: cython.long = 2**(cython.sizeof(cython.long) * 8 - 2)
too_large = safe_max_long + 10
for ch in value:
if ch in '.eE':
return float(value)
elif ch in '0123456789':
if intval >= safe_max_long // 10:
intval = too_large
else:
intval = intval * 10 + (ord(ch) - ord('0'))
else:
intval = too_large
if intval < too_large:
return intval
return int(value)
def test_sizeof():
"""
>>> test_sizeof()
True
True
True
True
True
"""
x = cython.declare(cython.bint)
print(cython.sizeof(x) == cython.sizeof(cython.bint))
print(cython.sizeof(cython.char) <= cython.sizeof(cython.short) <= cython.sizeof(cython.int) <= cython.sizeof(cython.long) <= cython.sizeof(cython.longlong))
print(cython.sizeof(cython.uint) == cython.sizeof(cython.int))
print(cython.sizeof(cython.p_int) == cython.sizeof(cython.p_double))
if cython.compiled:
print(cython.sizeof(cython.char) < cython.sizeof(cython.longlong))
else:
print(cython.sizeof(cython.char) == 1)
# -*- coding: utf-8 -*- # @Author: lcl1026504480 # @Date: 2019-08-29 17:11:37 # @Last Modified by: lcl1026504480 # @Last Modified time: 2019-08-29 17:17:06 import cython cython.declare(x=cython.int, x_ptr=cython.p_int) x = 5 x_ptr = cython.address(x) cython.declare(n=cython.longlong) print(cython.sizeof(cython.longlong)) n = 400 print(cython.sizeof(n)) MyStruct = cython.struct(x=cython.int, y=cython.int, data=cython.double) a = cython.declare(MyStruct) T = cython.typedef(cython.p_int) # ctypedef int* T # t1 = cython.cast(T, t) # t2 = cython.cast(T, t, typecheck=True)
