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# mode: run
# tag: cpp, cpp11, werror
from cython.operator cimport preincrement as incr, dereference as deref
from libc.stdint cimport *
from libcpp.atomic cimport atomic
def int_test(int x):
"""
>>> int_test(55)
3
>>> int_test(42)
3
>>> int_test(100000)
3
"""
atom = new atomic[int](x)
try:
atom.store(0)
incr(deref(atom))
incr(deref(atom))
incr(deref(atom))
return atom.load()
finally:
del atom
ctypedef atomic[int32_t] atomint32_t
def typedef_test(int x):
"""
>>> typedef_test(55)
3
>>> typedef_test(42)
3
>>> typedef_test(100000)
3
"""
atom = new atomint32_t(x)
try:
atom.store(0)
incr(deref(atom))
incr(deref(atom))
incr(deref(atom))
return atom.load()
finally:
del atom
def stack_allocation_test(int x):
"""
>>> stack_allocation_test(55)
3
>>> stack_allocation_test(42)
3
>>> stack_allocation_test(100000)
3
"""
cdef atomint32_t atom
atom.store(x)
try:
atom.store(0)
incr(atom)
incr(atom)
incr(atom)
return atom.load()
finally:
pass
def nogil_int_test(int x):
"""
>>> nogil_int_test(55)
55
>>> nogil_int_test(42)
42
>>> nogil_int_test(100000)
100000
"""
with nogil:
atom = new atomic[int](0)
try:
with nogil:
atom.store(x)
return atom.load()
finally:
del atom
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