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|
cdef union Spam:
int i
char c
float *p[42]
cdef Spam spam, ham
cdef void eggs_i(Spam s):
cdef int j
j = s.i
s.i = j
cdef void eggs_c(Spam s):
cdef char c
c = s.c
s.c = c
cdef void eggs_p(Spam s):
cdef float *p
p = s.p[0]
s.p[0] = p
spam = ham
def test_i():
"""
>>> test_i()
"""
spam.i = 1
eggs_i(spam)
def test_c():
"""
>>> test_c()
"""
spam.c = c'a'
eggs_c(spam)
def test_p():
"""
>>> test_p()
"""
cdef float f
spam.p[0] = &f
eggs_p(spam)
cdef union AllCharptr:
char* s1
char* s2
char* s3
def test_charptr_to_py():
"""
>>> result = test_charptr_to_py()
>>> len(result)
3
>>> result['s1'] == b'abc'
True
>>> result['s2'] == b'abc'
True
>>> result['s3'] == b'abc'
True
"""
cdef AllCharptr u
u.s1 = b"abc"
return u
cdef union SafeMix:
char c
unsigned char uc
signed char sc
short w
int i
long l
size_t z
float f
double d
def test_safe_type_mix_from_to_py(v):
"""
>>> test_safe_type_mix_from_to_py({'l': 32, 'c': 32})
Traceback (most recent call last):
ValueError: More than one union attribute passed: 'c' and 'l'
>>> result = test_safe_type_mix_from_to_py({'c': 32})
>>> sorted(result)
['c', 'd', 'f', 'i', 'l', 'sc', 'uc', 'w', 'z']
>>> result['c']
32
>>> result['z'] != 0
True
>>> result = test_safe_type_mix_from_to_py({'uc': 32})
>>> len(result)
9
>>> result['uc']
32
>>> result = test_safe_type_mix_from_to_py({'l': 100})
>>> result['l']
100
>>> result = test_safe_type_mix_from_to_py({'z': 0})
>>> result['z']
0
>>> result['i']
0
>>> result['l']
0
>>> result = test_safe_type_mix_from_to_py({'d': 2**52 - 1})
>>> result['d']
4503599627370495.0
>>> result['z'] != 0
True
"""
cdef SafeMix u = v
return u
|
